Background Description
If you encounter this error in a failed Queue job it is followed by a series of erors that look like the following sample:
<error id="16082" name="NotificationQueueMessageFailed"
uid="022d177d-ecfd-494f-bf87-054a9fd2b7b1"
EmailTypeUID="01ccf525-2cb1-4181-bc80-535a6db16c05" Error="The specified
string is not in the form required for an e-mail address." />
And, at the end of the error string, you also see a General Queue Job error 2600, it may indicate that the SMTP connection settings have changed or were deleted accidentally.
Resolution
To determine whether this is the cause run the following query on the Published database using SQL Mangement Studio's Query Analyzer:
Select * from dbo.MSP_EMAIL_DEFINITION where
Email_Type_UID='01ccf525-2cb1-4181-bc80-535a6db16c05'
If the query result returns "Alert-AssignmentsChanged" under "Email_Name", take the following action:
- Log on PWA with an administrator account and go to Server Settings-> Alerts and Reminders
- Input the correct information for SMTP Server, From Address and Company Domain
- Click the Save Buitton
If the problem persists, you may need to open a support case with Microsoft.