lists skrev den 2019-12-12 03:08:
Seriously is there ever a case not to use port 587?

On 12.12.19 08:29, Benny Pedersen wrote:
depends on content filtering, if all clients is local all can use port 25

even in this case separation of submission port can help much.
I prefer postscreen and milters on port 25, so spam is refused at SMTP
level.
Clients don't like that because sending mail takes time.

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