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Ehab Salem
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Unable to send emails - error 421

I am Unable to send most emails to most domains. We are using Sophos XG as the sending relay.
All (almost all) emails are stuck in the queue with error:
421 service not available (connection refused, generic failure).
some emails that give these errors sometimes are getting delivered.
Problem started only yesterday!
* email protectionEmail ServersSophosEmail Protocols

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Last Comment
David Favor

8/22/2022 - Mon