In this video we aim to finally achieve a 10/10 score on our Raspberry Pi hosted email server's outgoing email validation via mail-tester.com. We do this by adding a PTR record and making sure that our smtpd_banner and hostname settings match it.
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This video is part of the DIY Hosting of a WordPress website video series, in which I show how to setup and host a WordPress website and an email server, complete with a comprehensive Continuous Integration pipeline on a Raspberry Pi.
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