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Old 06-05-2012, 04:54 PM   #1
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Default postfix mails from non existing domain

today i think someone has hacked one of the email accounts with passwort from server.

problem, he sends phishing emails over the account with a not existing sender domain on server.
in logs i can only see the non existing sender adress, so i don't know from which account.

it would be better if the mailsystem checks the sender adress before sending as standart.

what i have to change to solve this problem?

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Old 06-05-2012, 08:12 PM   #2
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Try check email logs by messageID

grep messageid /var/log/maillog
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