One more problem.
New installation of SMSSMTP 5.0.1. The message queue is growing until server stops responding. The number of messages is up to 1000. And I can see many errors in log:
(88103d0) Engine failed: (error 0x3000008).
Error while attempting to resolve recipients address: user@my.domain
What does it mean?
When I stop IIS service or change MTA status to
Rejecting the message queue is going down but what's the reason?
Any suggestions?
Best regards