2.2.3.7.1.1 Determining the Value of the PidTagMessageClass Property
The value of the PidTagMessageClass property ([MS-OXCMSG] section 2.2.1.3) is determined by checking the Action field for each set of per-recipient delivery status notification fields, as specified in [RFC3464] section 2.3, to find the Action field value with the highest severity, as specified in the following table.
|
Action field value |
Severity |
|---|---|
|
delivered |
0 |
|
expanded |
1 |
|
relayed |
2 |
|
delayed |
3 |
|
failed |
4 |
Once the Action field value with the highest severity has been found, the value of the PidTagMessageClass property is found by prepending "REPORT." and appending the appropriate suffix from the following table to the value of the PidTagMessageClass property that was set by the MIME reader before processing the message/delivery-status body part.
|
Action field value |
PidTagMessageClass suffix |
|---|---|
|
delivered |
*.DR |
|
expanded |
*.Expanded.DR |
|
relayed |
*.Relayed.DR |
|
delayed |
*.Delayed.DR |
|
failed |
*.NDR |