PMG send spam mails from a fake address

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efyandro

Member
Mar 5, 2020
16
1
8
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As you can see in the picture above, sender @163.com is not even mydomain, he send spam mails to random addresses.
Was it my SMTP that got compromised and he send fake mail as me?
Does it dangerous for my pmg server or
Will my domain be blocked from google and yahoo?
 
dietmar said:
This is the senders address, so I do not really understand your question.
Click to expand...
as i said before that @163.com is not my domain, the sender is not listed in our LDAP user, for example, a @gmail sender send email to a @yahoo recipient, should not use my pmg server to comunicate
 
efyandro said:
as i said before that @163.com is not my domain, the sender is not listed in our LDAP user, for example, a @gmail sender send email to a @yahoo recipient, should not use my pmg server to comunicate
Click to expand...

Again, those are incoming mails from an external sender (normal SPAM). The picture you posted only shows incoming mails from @163.com to your domain.
 
dietmar said:
Again, those are incoming mails from an external sender (normal SPAM). The picture you posted only shows incoming mails from @163.com to your domain.
Click to expand...

external sender to external recipient, why bother using my pmg installation then? that bluewin.ch is not my domain either
 
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this 163.com spamming my pmg since 1st February
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using my identity to send spam to numerous random emails
 
Last edited:
The you have either:

* a serious miss-configuration. Maybe you exposed the internal port to the internet (instead of the external port)?
* an internal spammer (check the sending IP address to verify that)?
 
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