I have experienced, many times, people sending mail to the lower priority SMTP s... | Hacker News

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danielweber on Oct 7, 2012 | parent | context | favorite | on: How to use Gmail to destroy your relationship with...

I have experienced, many times, people sending mail to the lower priority SMTP server despite the primary being fully online.

quicksilver03 on Oct 7, 2012 [–]

In my experience, the only ones doing that are spammers which assume that a secondary SMTP has no antispam filters configured.

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