Trying to send to an individual user using the SSIS Sendmail task works OK.
Trying to send to a distribution group fails with the following:
SSIS package "Package2.dtsx" starting.
[b]Error: 0xC002F304 at Send Mail Task, Send Mail Task: An error occurred with the following error message: "Mailbox unavailable. The server response was: 5.1.1 User unknown".[/b]
Task failed: Send Mail Task
Warning: 0x80019002 at Package2: SSIS Warning Code DTS_W_MAXIMUMERRORCOUNTREACHED. The Execution method succeeded, but the number of errors raised (1) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.
SSIS package "Package2.dtsx" finished: Failure.
I have tried different distribution groups, same effect. Strange that it works for individual users, but not distribution groups?