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Chris Pollitt

Exchange Online: Looping through large numbers of objects, a PowerShell example

Sometimes it is necessary to run a command against a large number of objects.  The simplest way to...

Date: 01/29/2018

External users cannot open encrypted messages

When an external user tries to view the contents of an encrypted message from your organization they...

Date: 11/30/2017

Messaging Records Management & confusion with Litigation Hold

Many customers I speak with are confused by the terminology used with Messaging Records Management...

Date: 09/11/2017

Testing Impersonation Permission with EWS Editor

A question that comes up occasionally with support is whether Impersonation is broken within...

Date: 02/01/2017

Divide Discovery and In-Place hold searches into smaller units

This blog has been in the works for longer than I would like to admit :). Since starting a few...

Date: 08/31/2014

How to run SDP on a computer that cannot connect to the Internet

In support we frequently ask that customers run the Support Diagnostics Platform so we can collect a...

Date: 02/12/2013

12800 Event solutions

12800 events indicate you are running out of memory. For example: Event Type: Error Event Source:...

Date: 03/14/2012

Dumping Cluster logs in response to an event

Recently I was working with a customer that experienced database moves in their DAG. The "failovers"...

Date: 02/29/2012

OWAEnabled filter returns unexpected results

I recently had a customer that was running: get-casmailbox -filter {OWAEnabled -eq $false} In the...

Date: 09/30/2011

How high item counts can influence 623 events

In my earlier blog about 623 events I mentioned there are a great many possible causes. Twice in the...

Date: 08/31/2011

Misadventures with Installing Windows 2008 R2

Normally I work almost exclusively with Exchange as that is the product I am involved in supporting....

Date: 07/10/2011

One cause of RPC latency

There are numerous articles on the topic of RPC latency on the server and the RPC Dialog box...

Date: 05/09/2011

Determining the proper App pool for Exchange dump collection

At times we may need to collect memory dumps of a specific Exchange process for troubleshooting. For...

Date: 05/02/2011

Problem creating a rolegroup from a child domain?

If you are having trouble running New-RoleGroup from a child domain on Exchange 2010 you have two...

Date: 03/31/2011

Virtual Allocation vs. Physical Allocations

This is a question that comes up pretty frequently in Exchange 2003 in relation to 9582 events that...

Date: 03/29/2011

Page Churn in Exchange

Recently I encountered a case where the customer's goal was to measure page churn in an Exchange...

Date: 03/08/2011