Manage Inbox rules by using EWS in Exchange

Find out how to get, create, update, and delete Inbox rules by using the EWS Managed API or EWS in Exchange.

You can get, create, update, and delete Inbox rules by using the EWS Managed API or EWS. Regardless of the technology you use, you get and modify Inbox rules as a collection, rather than individually. You use the same method or operation to create new rules, update existing rules, and delete rules.

Table 1. Methods and operations for getting and modifying Inbox rules

In order to… EWS Managed API method EWS operation
Get Inbox rules
ExchangeService.GetInboxRules
GetInboxRules
Create, update, or delete Inbox rules
ExchangeService.UpdateInboxRules
UpdateInboxRules

In order to create, update, or delete Inbox rules by using the EWS Managed API or EWS, you must remove the Outlook rule, if it exists. If you're using the EWS Managed API, you do this by setting the removeOutlookRulesBlob parameter to true in the ExchangeService.UpdateInboxRules method call. If you're using EWS, you set the value of the RemoveOutlookRuleBlob element to true in the UpdateInboxRules operation. We recommend that your application check the RuleCollection.OutlookRuleBlobExists property (if you are using the EWS Managed API), or the OutlookRuleBlobExists element (if you're using EWS) before updating Inbox rules. If this property or element has a value of true, your application should alert the user that any disabled rules will be lost as part of the update, and only proceed with their permission.

When you call the UpdateInboxRules method, EWS deletes client-side send rules. Client-side send rules are stored on the client in the rule Folder Associated Information (FAI) Message and nowhere else. EWS deletes this rule FAI message by default, based on the expectation that Outlook will recreate it. However, Outlook can't recreate rules that don't also exist as an extended rule, and client-side send rules don't exist as extended rules. As a result, these rules are lost. We suggest you consider this when designing your solution.

Note

The EWS Managed API code examples in this article use a common set of utility methods. These methods are omitted from the code samples for brevity.

Get Inbox rules by using the EWS Managed API

To get the current Inbox rules, use the ExchangeService.GetInboxRules method. This method returns a RuleCollection object that contains all the current Inbox rules.

In this example, each rule in the current Inbox is passed to a helper function ( ParseRuleDetails ) to display the details of the rule.

using System;
using System.Collections.Generic;
using Microsoft.Exchange.WebServices.Data;
private static void GetInboxRules(ExchangeService service, string emailAddress)
{
    RuleCollection inboxRules = null;
    Console.WriteLine("Retrieving inbox rules...");
    // Get the rules from the user's Inbox.
    try
    {
        inboxRules = service.GetInboxRules(emailAddress);
    }
    catch (ServiceResponseException ex)
    {
        Console.WriteLine("Error getting inbox rules: {0}", ex.ErrorCode.ToString());
        return;
    }
    // Loop through the rules and print out the details of each.
    foreach (Rule rule in inboxRules)
    {
        Console.WriteLine("\n***************************************************************");
        Console.WriteLine("Rule: {0}", rule.DisplayName);
        Console.WriteLine("Rule ID: {0}", rule.Id);
        Console.WriteLine("Priority: {0}", rule.Priority);
        Console.WriteLine("Enabled: {0}", rule.IsEnabled.ToString());
        Console.WriteLine("Error: {0}", rule.IsInError.ToString());
        Console.WriteLine("Supported: {0}", (!rule.IsNotSupported).ToString());
        ParseRuleDetails(service, rule);
    }
}

Get Inbox rules by using EWS

The following EWS SOAP request uses the GetInboxRules operation to retrieve the Inbox rules for sadie@contoso.com.

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" 
    xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" 
    xmlns:soap="https://schemas.xmlsoap.org/soap/envelope/">
<soap:Header>
  <t:RequestServerVersion Version="Exchange2013" />
</soap:Header>
<soap:Body>
  <m:GetInboxRules>
    <m:MailboxSmtpAddress>sadie@contoso.com</m:MailboxSmtpAddress>
  </m:GetInboxRules>
</soap:Body>
</soap:Envelope>

The following EWS SOAP response contains the current Inbox rules for sadie@contoso.com.

<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="https://schemas.xmlsoap.org/soap/envelope/">
<s:Header>
  <h:ServerVersionInfo MajorVersion="15" MinorVersion="0" MajorBuildNumber="712" MinorBuildNumber="22" Version="V2_3" 
      xmlns:h="http://schemas.microsoft.com/exchange/services/2006/types" 
      xmlns="http://schemas.microsoft.com/exchange/services/2006/types" 
      xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" />
</s:Header>
<s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <GetInboxRulesResponse ResponseClass="Success" xmlns="http://schemas.microsoft.com/exchange/services/2006/messages">
    <ResponseCode>NoError</ResponseCode>
    <OutlookRuleBlobExists>false</OutlookRuleBlobExists>
    <InboxRules>
      <Rule xmlns="http://schemas.microsoft.com/exchange/services/2006/types">
        <RuleId>AQAAAAAAASY=</RuleId>
        <DisplayName>Alfred</DisplayName>
        <Priority>1</Priority>
        <IsEnabled>true</IsEnabled>
        <Conditions>
          <FromAddresses>
            <Address>
              <Name>Alfred Welker</Name>
              <EmailAddress>/o=First Organization/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=9a83e6380cae41918c71e7921d960b5a-Alfre</EmailAddress>
              <RoutingType>EX</RoutingType>
            </Address>
          </FromAddresses>
        </Conditions>
        <Actions>
          <MoveToFolder>
            <FolderId Id="AAMkADg1OWUwODcyLTg4M2MtNDAyMS05YjI0LTI5ZGM5OTU4Njk3YwAuAAAAAADPriAxh444TpHj2GoQxWQNAQAN+VjmVZl5Rq1ymCq5eFKOAAAAABSyAAA=" ChangeKey="AQAAAA==" />
          </MoveToFolder>
          <StopProcessingRules>true</StopProcessingRules>
        </Actions>
      </Rule>
      <Rule xmlns="http://schemas.microsoft.com/exchange/services/2006/types">
        <RuleId>AQAAAAAAASQ=</RuleId>
        <DisplayName>Important</DisplayName>
        <Priority>2</Priority>
        <IsEnabled>true</IsEnabled>
        <Conditions>
          <ContainsSubjectStrings>
            <String>Urgent</String>
          </ContainsSubjectStrings>
          <FromAddresses>
            <Address>
              <Name>Hope Gross</Name>
              <EmailAddress>/o=First Organization/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=9b55e4100c064d9d8c5f72ff36802ed3-Hope</EmailAddress>
              <RoutingType>EX</RoutingType>
            </Address>
          </FromAddresses>
        </Conditions>
        <Actions>
          <MarkImportance>High</MarkImportance>
          <StopProcessingRules>true</StopProcessingRules>
        </Actions>
      </Rule>
    </InboxRules>
  </GetInboxRulesResponse>
</s:Body>
</s:Envelope>

Create Inbox rules by using the EWS Managed API

To create a rule, include a CreateRuleOperation object in the collection of RuleOperation objects passed to the ExchangeService.UpdateInboxRules method.

In this example, a new rule is created to move mail sent to a distribution list called "Sales" to a subfolder of the Inbox, also called "Sales".

using System;
using System.Collections.Generic;
using Microsoft.Exchange.WebServices.Data;
private static void CreateInboxRule(ExchangeService service, string emailAddress)
{
    // Before modifying the rules on the server, determine
    // whether an Outlook rules BLOB exists. Updating rules
    // via EWS requires removal of the Outlook BLOB. This can
    // result in any rules that the user has disabled via the Outlook
    // UI to be lost.
    RuleCollection currentRules = null;
    try
    {
        currentRules = service.GetInboxRules(emailAddress);
    }
    catch (ServiceResponseException ex)
    {
        Console.WriteLine("Error getting inbox rules: {0}", ex.ErrorCode.ToString());
    }
    if (currentRules != null && currentRules.OutlookRuleBlobExists)
    {
        Console.WriteLine("WARNING: Adding a new rule will delete the Outlook rule BLOB.");
        Console.WriteLine("This can lead to a loss of any disabled rules.");
        Console.Write("Hit Y to proceed (any other key to cancel): ");
        ConsoleKeyInfo cki = Console.ReadKey();
        if (cki.KeyChar != 'Y' && cki.KeyChar != 'y')
        {
            Console.WriteLine("\nCanceling addition of new rule...");
            return;
        }
        Console.WriteLine();
    }
    Console.WriteLine("Adding \"Sales\" rule.");
    Rule newRule = new Rule();
    // Creating a rule called "Sales"
    newRule.DisplayName = "Sales";
    // Conditions
    // When messages are sent to the "Sales" address (sales@contoso.com),
    newRule.Conditions.SentToAddresses.Add("Sales", "sales@contoso.com");
    FolderId moveToFolderId = GetFolderIdByName(service, WellKnownFolderName.Inbox, "Sales");
    if (moveToFolderId == null)
    {
        throw new ArgumentException("Invalid subfolder specified");
    }
    // Actions
    // Move the message to the "Sales" folder
    newRule.Actions.MoveToFolder = moveToFolderId;
    // And stop processing more rules
    newRule.Actions.StopProcessingRules = true;
    // Exceptions
    // Except if the message is from Hope Gross (hope@contoso.com).
    newRule.Exceptions.FromAddresses.Add("Hope Gross", "hope@contoso.com");
    Console.WriteLine("Rule: {0}", newRule.DisplayName);
    ParseRuleDetails(service, newRule);
    // Add the new rule to the CreateRule operation.
    CreateRuleOperation createMoveIfFromSalesRule = new CreateRuleOperation(newRule);
    try
    {
        // Update rules. Note that this method can accept
        // an array of rule operations, enabling you to batch
        // updates.
        service.UpdateInboxRules(new RuleOperation[] { createMoveIfFromSalesRule }, true);
    }
    catch (UpdateInboxRulesException ex)
    {
        Console.WriteLine("Error updating Inbox rules: {0}", ex.ErrorCode.ToString());
        return;
    }
    Console.WriteLine("Rule added.");
}

Create Inbox rules by using EWS

The following EWS SOAP request creates the "Sales" rule in sadie@contoso.com's Inbox.

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" 
    xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" 
    xmlns:soap="https://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <t:RequestServerVersion Version="Exchange2013" />
  </soap:Header>
  <soap:Body>
    <m:UpdateInboxRules>
      <m:RemoveOutlookRuleBlob>true</m:RemoveOutlookRuleBlob>
      <m:Operations>
        <t:CreateRuleOperation>
          <t:Rule>
            <t:DisplayName>Sales</t:DisplayName>
            <t:Priority>1</t:Priority>
            <t:IsEnabled>true</t:IsEnabled>
            <t:IsInError>false</t:IsInError>
            <t:Conditions>
              <t:SentToAddresses>
                <t:Address>
                  <t:Name>Sales</t:Name>
                  <t:EmailAddress>sales@contoso.com</t:EmailAddress>
                </t:Address>
              </t:SentToAddresses>
            </t:Conditions>
            <t:Exceptions>
              <t:FromAddresses>
                <t:Address>
                  <t:Name>Hope Gross</t:Name>
                  <t:EmailAddress>hope@contoso.com</t:EmailAddress>
                </t:Address>
              </t:FromAddresses>
            </t:Exceptions>
            <t:Actions>
              <t:MoveToFolder>
                <t:FolderId Id="AAMkADg1OWUwODcyLTg4M2MtNDAyMS05YjI0LTI5ZGM5OTU4Njk3YwAuAAAAAADPriAxh444TpHj2GoQxWQNAQAN+VjmVZl5Rq1ymCq5eFKOAAAAABSxAAA=" 
                    ChangeKey="AQAAABYAAAAN+VjmVZl5Rq1ymCq5eFKOAAAAABTZ" />
              </t:MoveToFolder>
              <t:StopProcessingRules>true</t:StopProcessingRules>
            </t:Actions>
          </t:Rule>
        </t:CreateRuleOperation>
      </m:Operations>
    </m:UpdateInboxRules>
  </soap:Body>
</soap:Envelope>

Update Inbox rules by using the EWS Managed API

To update a rule, include a SetRuleOperation object in the collection of RuleOperation objects passed to the UpdateInboxRules method.

In this example, the "Sales" rule is updated to add an exception. If the subject contains the word "Urgent", the messages will not be moved to the "Sales" subfolder.

using System;
using System.Collections.Generic;
using Microsoft.Exchange.WebServices.Data;
private static void UpdateInboxRule(ExchangeService service, string emailAddress)
{
    // Before modifying the rules on the server, determine
    // whether an Outlook rules BLOB exists. Updating rules
    // via EWS requires removal of the Outlook BLOB. This can
    // result in any rules that the user has disabled via the Outlook
    // UI to be lost.
    RuleCollection currentRules = null;
    try
    {
        currentRules = service.GetInboxRules(emailAddress);
    }
    catch (ServiceResponseException ex)
    {
        Console.WriteLine("Error getting inbox rules: {0}", ex.ErrorCode.ToString());
    }
    if (currentRules != null && currentRules.OutlookRuleBlobExists)
    {
        Console.WriteLine("WARNING: Updating an existing rule will delete the Outlook rule BLOB.");
        Console.WriteLine("This can lead to a loss of any disabled rules.");
        Console.Write("Hit Y to proceed (any other key to cancel): ");
        ConsoleKeyInfo cki = Console.ReadKey();
        if (cki.KeyChar != 'Y' && cki.KeyChar != 'y')
        {
            Console.WriteLine("\nCanceling update of rule...");
            return;
        }
        Console.WriteLine();
    }
    // Look for the rule called "Sales" and modify it
    // to add an exception if "Urgent" is in the subject.
    Console.WriteLine("Updating rule \"Sales\"...");
    Rule ruleToUpdate = null;
    foreach (Rule rule in currentRules)
    {
        if (rule.DisplayName == "Sales")
        {
            ruleToUpdate = rule;
            break;
        }
    }
    if (ruleToUpdate == null)
    {
        Console.WriteLine("Could not find a rule called \"Sales\", canceling update.");
        return;
    }
    // Add the exception.
    ruleToUpdate.Exceptions.ContainsSubjectStrings.Add("Urgent");
    SetRuleOperation setRuleOperation = new SetRuleOperation(ruleToUpdate);
    try
    {
        // Update rules. Note that this method can accept
        // an array of rule operations, enabling you to batch
        // updates.
        service.UpdateInboxRules(new RuleOperation[] { setRuleOperation }, true);
    }
    catch (UpdateInboxRulesException ex)
    {
        Console.WriteLine("Error updating Inbox rules: {0}", ex.ErrorCode.ToString());
        return;
    }
    Console.WriteLine("Rule updated.");
}

Update Inbox rules by using EWS

The following EWS SOAP request updates the "Sales" rule in sadie@contoso.com's Inbox.

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" 
    xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" 
    xmlns:soap="https://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <t:RequestServerVersion Version="Exchange2013" />
  </soap:Header>
  <soap:Body>
    <m:UpdateInboxRules>
      <m:RemoveOutlookRuleBlob>true</m:RemoveOutlookRuleBlob>
      <m:Operations>
        <t:SetRuleOperation>
          <t:Rule>
            <t:RuleId>AQAAAATnzOA=</t:RuleId>
            <t:DisplayName>Sales</t:DisplayName>
            <t:Priority>1</t:Priority>
            <t:IsEnabled>true</t:IsEnabled>
            <t:IsInError>false</t:IsInError>
            <t:Conditions>
              <t:SentToAddresses>
                <t:Address>
                  <t:Name>Sales</t:Name>
                  <t:EmailAddress>sales@contoso.com</t:EmailAddress>
                  <t:RoutingType>SMTP</t:RoutingType>
                </t:Address>
              </t:SentToAddresses>
            </t:Conditions>
            <t:Exceptions>
              <t:ContainsSubjectStrings>
                <t:String>Urgent</t:String>
              </t:ContainsSubjectStrings>
              <t:FromAddresses>
                <t:Address>
                  <t:Name>Hope Gross</t:Name>
                  <t:EmailAddress>hope@contoso.com</t:EmailAddress>
                  <t:RoutingType>SMTP</t:RoutingType>
                </t:Address>
              </t:FromAddresses>
            </t:Exceptions>
            <t:Actions>
              <t:MoveToFolder>
                <t:FolderId Id="AAMkADg1OWUwODcyLTg4M2MtNDAyMS05YjI0LTI5ZGM5OTU4Njk3YwAuAAAAAADPriAxh444TpHj2GoQxWQNAQAN+VjmVZl5Rq1ymCq5eFKOAAAAABSxAAA=" 
                    ChangeKey="AQAAAA==" />
              </t:MoveToFolder>
              <t:StopProcessingRules>true</t:StopProcessingRules>
            </t:Actions>
          </t:Rule>
        </t:SetRuleOperation>
      </m:Operations>
    </m:UpdateInboxRules>
  </soap:Body>
</soap:Envelope>

Delete Inbox rules by using the EWS Managed API

To delete a rule, include a DeleteRuleOperation object in the collection of RuleOperation objects passed to the UpdateInboxRules method.

In this example, the "Sales" rule is deleted.

using System;
using System.Collections.Generic;
using Microsoft.Exchange.WebServices.Data;
private static void DeleteInboxRule(ExchangeService service, string emailAddress)
{
    // Before modifying the rules on the server, determine
    // whether an Outlook rules BLOB exists. Updating rules
    // via EWS requires removal of the Outlook BLOB. This can
    // result in any rules that the user has disabled via the Outlook
    // UI to be lost.
    RuleCollection currentRules = null;
    try
    {
        currentRules = service.GetInboxRules(emailAddress);
    }
    catch (ServiceResponseException ex)
    {
        Console.WriteLine("Error getting inbox rules: {0}", ex.ErrorCode.ToString());
    }
    if (currentRules != null && currentRules.OutlookRuleBlobExists)
    {
        Console.WriteLine("WARNING: Deleting a rule will delete the Outlook rule BLOB.");
        Console.WriteLine("This can lead to a loss of any disabled rules.");
        Console.Write("Hit Y to proceed (any other key to cancel): ");
        ConsoleKeyInfo cki = Console.ReadKey();
        if (cki.KeyChar != 'Y' && cki.KeyChar != 'y')
        {
            Console.WriteLine("\nCancelling deletion of new rule...");
            return;
        }
        Console.WriteLine();
    }
    // Look for the rule called "Sales" and delete it.
    Console.WriteLine("Deleting rule \"Sales\"...");
    string ruleId = string.Empty;
    foreach (Rule rule in currentRules)
    {
        if (rule.DisplayName == "Sales")
        {
            ruleId = rule.Id;
            break;
        }
    }
    if (string.IsNullOrEmpty(ruleId))
    {
        Console.WriteLine("Could not find a rule called \"Sales\", canceling delete.");
        return;
    }
    DeleteRuleOperation deleteRuleOperation = new DeleteRuleOperation(ruleId);
    try
    {
        // Update rules. Note that this method can accept
        // an array of rule operations, enabling you to batch
        // updates.
        service.UpdateInboxRules(new RuleOperation[] { deleteRuleOperation }, true);
    }
    catch (UpdateInboxRulesException ex)
    {
        Console.WriteLine("Error updating Inbox rules: {0}", ex.ErrorCode.ToString());
        return;
    }
    Console.WriteLine("Rule deleted.");
}

Delete Inbox rules by using EWS

The following EWS SOAP request deletes the "Sales" rules from sadie@contoso.com's inbox.

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" 
    xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" 
    xmlns:soap="https://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <t:RequestServerVersion Version="Exchange2013" />
  </soap:Header>
  <soap:Body>
    <m:UpdateInboxRules>
      <m:RemoveOutlookRuleBlob>true</m:RemoveOutlookRuleBlob>
      <m:Operations>
        <t:DeleteRuleOperation>
          <t:RuleId>AQAAAATnzOA=</t:RuleId>
        </t:DeleteRuleOperation>
      </m:Operations>
    </m:UpdateInboxRules>
  </soap:Body>
</soap:Envelope>

Source for sample utility methods

The EWS Managed API examples in this article use the utility methods included in the following example.

private static void ParseRuleDetails(ExchangeService service, Rule rule)
{
    // Conditions
    string conditions = ParseRulePredicates(rule.Conditions, false);
    if (!string.IsNullOrEmpty(conditions))
    {
        Console.WriteLine("When a message:");
        Console.WriteLine(conditions);
    }
    // Actions
    string actions = ParseRuleActions(service, rule.Actions);
    if (!string.IsNullOrEmpty(actions))
    {
        Console.WriteLine("Take the following action(s):");
        Console.WriteLine(actions);
    }
    // Exceptions
    string exceptions = ParseRulePredicates(rule.Exceptions, true);
    if (!string.IsNullOrEmpty(exceptions))
    {
        Console.WriteLine("Except when the message:");
        Console.WriteLine(exceptions);
    }
}
private static string ParseRulePredicates(RulePredicates predicates, bool isExceptions)
{
    string humanReadablePredicates = string.Empty;
    foreach (string category in predicates.Categories)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has the category \"" + category + "\"", isExceptions);
    }
    foreach (string bodyString in predicates.ContainsBodyStrings)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has \"" + bodyString + "\" in the body", isExceptions);
    }
    foreach (string headerString in predicates.ContainsHeaderStrings)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has \"" + headerString + "\" in the headers", isExceptions);
    }
    foreach (string recipientString in predicates.ContainsRecipientStrings)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has \"" + recipientString + "\" in the recipient's address", isExceptions);
    }
    foreach (string senderString in predicates.ContainsSenderStrings)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has \"" + senderString + "\" in the sender's address", isExceptions);
    }
    foreach (string subjectOrBodyString in predicates.ContainsSubjectOrBodyStrings)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has \"" + subjectOrBodyString + "\" in the subject or body", isExceptions);
    }
    foreach (string subjectString in predicates.ContainsSubjectStrings)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has \"" + subjectString + "\" in the subject", isExceptions);
    }
    if (predicates.FlaggedForAction != null)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is flagged for \"" + predicates.FlaggedForAction.Value + "\" action", isExceptions);
    }
    foreach (EmailAddress fromAddress in predicates.FromAddresses)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is from " + fromAddress.Name + " (" + fromAddress.Address + ")", isExceptions);
    }
    foreach (string fromConnectedAccount in predicates.FromConnectedAccounts)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is from the \"" + fromConnectedAccount + "\" account", isExceptions);
    }
    if (predicates.HasAttachments)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has an attachment", isExceptions);
    }
    if (predicates.Importance != null)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is marked as " + predicates.Importance.Value + " importance", isExceptions);
    }
    if (predicates.IsApprovalRequest)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is an approval request", isExceptions);
    }
    if (predicates.IsAutomaticForward)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is an automatic forward", isExceptions);
    }
    if (predicates.IsAutomaticReply)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is an automatic reply", isExceptions);
    }
    if (predicates.IsEncrypted)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is encrypted", isExceptions);
    }
    if (predicates.IsMeetingRequest)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is a meeting request", isExceptions);
    }
    if (predicates.IsMeetingResponse)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is a meeting response", isExceptions);
    }
    if (predicates.IsNonDeliveryReport)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is a non-delivery report", isExceptions);
    }
    if (predicates.IsPermissionControlled)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is a rights-managed message", isExceptions);
    }
    if (predicates.IsReadReceipt)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is a read receipt", isExceptions);
    }
    if (predicates.IsSigned)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is signed", isExceptions);
    }
    if (predicates.IsVoicemail)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is a voicemail", isExceptions);
    }
    foreach (string messageClass in predicates.ItemClasses)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has a message class of \"" + messageClass + "\"", isExceptions);
    }
    foreach (string messageClassification in predicates.MessageClassifications)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has a classification of \"" + messageClassification + "\"", isExceptions);
    }
    if (predicates.NotSentToMe)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is not sent to me", isExceptions);
    }
    if (predicates.Sensitivity != null)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has a sensitivity of \"" + predicates.Sensitivity.Value + "\"", isExceptions);
    }
    if (predicates.SentCcMe)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has me on the CC line", isExceptions);
    }
    if (predicates.SentOnlyToMe)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is sent ONLY to me", isExceptions);
    }
    foreach (EmailAddress sentToAddress in predicates.SentToAddresses)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "is sent to " + sentToAddress.Name + " (" + sentToAddress.Address + ")", isExceptions);
    }
    if (predicates.SentToMe)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has me on the To line", isExceptions);
    }
    if (predicates.SentToOrCcMe)
    {
        humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
            "has me on the To or CC line", isExceptions);
    }
    if (predicates.WithinDateRange != null)
    {
        if (predicates.WithinDateRange.Start != null)
        {
            humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
                "was received after " + predicates.WithinDateRange.Start.ToString(), isExceptions);
        }
        if (predicates.WithinDateRange.End != null)
        {
            humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
                "was recieved before " + predicates.WithinDateRange.End.ToString(), isExceptions);
        }
    }
    if (predicates.WithinSizeRange != null)
    {
        if (predicates.WithinSizeRange.MinimumSize != null)
        {
            humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
                "is larger than " + predicates.WithinSizeRange.MinimumSize + " kb", isExceptions);
        }
        if (predicates.WithinSizeRange.MaximumSize != null)
        {
            humanReadablePredicates = AppendToHumanReadableString(humanReadablePredicates,
                "is smaller than " + predicates.WithinSizeRange.MaximumSize + " kb", isExceptions);
        }
    }
    return humanReadablePredicates;
}
private static string ParseRuleActions(ExchangeService service, RuleActions actions)
{
    string humanReadableActions = string.Empty;
    foreach (string category in actions.AssignCategories)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "assign the \"" + category + "\" category", false);
    }
    if (actions.CopyToFolder != null)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "move to the \"" + GetFolderNameFromId(service, actions.CopyToFolder) + "\" folder", false);
    }
    if (actions.Delete)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "delete the message", false);
    }
    foreach (EmailAddress forwardAddress in actions.ForwardAsAttachmentToRecipients)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "forward as an attachment to " + forwardAddress.Name + " (" +
            forwardAddress.Address + ")", false);
    }
    foreach (EmailAddress forwardAddress in actions.ForwardToRecipients)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "forward to " + forwardAddress.Name + " (" + forwardAddress.Address + ")", false);
    }
    if (actions.MarkAsRead)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "mark the message as read", false);
    }
    if (actions.MarkImportance != null)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "mark the message with " + actions.MarkImportance.Value + " importance", false);
    }
    if (actions.MoveToFolder != null)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "move the message to the \"" + GetFolderNameFromId(service, actions.MoveToFolder) + "\" folder", false);
    }
    if (actions.PermanentDelete)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "permanently delete the message", false);
    }
    foreach (EmailAddress redirectAddress in actions.RedirectToRecipients)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "redirect the message to " + redirectAddress.Name + " (" +
            redirectAddress.Address + ")", false);
    }
    foreach (MobilePhone smsRecipient in actions.SendSMSAlertToRecipients)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "send SMS alert to " + smsRecipient.Name + " (" +
            smsRecipient.PhoneNumber + ")", false);
    }
    if (actions.ServerReplyWithMessage != null)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "have the server reply with a template message, ID=" +
            actions.ServerReplyWithMessage.UniqueId, false);
    }
    if (actions.StopProcessingRules)
    {
        humanReadableActions = AppendToHumanReadableString(humanReadableActions,
            "stop processing more rules", false);
    }
    return humanReadableActions;
}
private static string AppendToHumanReadableString(string humanReadableString, string appendString, bool isExceptions)
{
    // Conditions and Actions are AND'ed together
    string logicalOperator = "AND";
    if (isExceptions)
    {
        // Exceptions are OR'ed
        logicalOperator = "OR";
    }
    if (!string.IsNullOrEmpty(humanReadableString))
    {
        // There's already an item in the list, so we need to
        // add the operator
        humanReadableString += "\n  " + logicalOperator + " ";
    }
    else
    {
        humanReadableString += "  ";
    }
    humanReadableString += appendString;
    return humanReadableString;
}
private static string GetFolderNameFromId(ExchangeService service, FolderId folderId)
{
    string folderName = string.Empty;
    Folder folder = null;
    try
    {
        folder = Folder.Bind(service, folderId);
    }
    catch (ServiceResponseException)
    {
        Console.WriteLine("Unable to bind to the folder specified.");
    }
    if (folder != null)
        folderName = folder.DisplayName;
    return folderName;
}
private static FolderId GetFolderIdByName(ExchangeService service, WellKnownFolderName parentWellKnownFolder, string subFolderName)
{
    FolderId returnId = null;
    Folder parentFolder = null;
    try
    {
        parentFolder = Folder.Bind(service, parentWellKnownFolder);
    }
    catch (ServiceResponseException)
    {
        Console.WriteLine("Unable to bind to the {} folder.", parentWellKnownFolder.ToString());
    }
    if (parentFolder == null)
        return null;
    SearchFilter searchFilter = new SearchFilter.IsEqualTo(FolderSchema.DisplayName, subFolderName);
    FolderView view = new FolderView(10);
    view.PropertySet = new PropertySet(BasePropertySet.IdOnly);
    view.PropertySet.Add(FolderSchema.DisplayName);
    view.Traversal = FolderTraversal.Shallow;
    FindFoldersResults searchResults = null;
    try
    {
        searchResults = parentFolder.FindFolders(searchFilter, view);
    }
    catch (ServiceResponseException ex)
    {
        Console.WriteLine("Error searching for {0} folder: {1}", subFolderName,
            ex.ErrorCode.ToString());
    }
    foreach (Folder subFolder in searchResults.Folders)
    {
        if (subFolder.DisplayName == subFolderName)
            returnId = subFolder.Id;
        break;
    }
    return returnId;
}

See also