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Phil's Blog

The thoughts and ramblings of an Engineer

Tag: postfix

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26 December, 2017 Blog

Postfix: Blocking senders by reverse DNS hostname

Postfix has an option for smtpd_recipient_restrictions called check_client_access. According to the Postfix manual, this: You can use it to block specific domains, as

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12 September, 2013 Blog

Changing the outgoing SMTP (sending) IP address in Postfix

This is far easier than I thought it’d be. I had to change it to get around some blacklisting my

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