I recently got SPAM Mail from our own domain mail address. Looks like this userXYZ@domain.com sent mail to himself userXYZ@domain.com a SPAM mail.
I´m new to the sophos security topic, so is there a way to stop something like this? What about adding the sender (*@domain.com) to the blacklist? Or is this blocking too much?
We use a Sophos UTM 9 Release 9.713-19.
If you need further information, please let me know (and where I can find this information ;) )
Thanks!
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