Hi folks!
i have a problem with our Sophos version 9.5 .
Recently we get many messages about failed logins to smtp facility (See subject line).
It says that some ip tried to login to the smtp server and gets blocked for our defined 3600 seconds.
Curiously we've not defined any foreign networks to be able to login to our sophos nor did we define any unknown users to do so. So where does this come from and how can we solve it?
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