If you mean port 465, it is the port for SMTPS, not a dedicated submission port.... | Hacker News

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		anticensor on Jan 26, 2020 \| parent \| context \| favorite \| on: Why does gigabit internet via coax cable not offer... If you mean port 465, it is the port for SMTPS, not a dedicated submission port. I received timeout, not block, when I queried gmail on port 25. If it were blocked, I would get a TCP reset.

vidarh on Jan 26, 2020 [–]

Port 587.

Not nearly all consumer isps block port 25, but a lot do.

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