Not quite what you say - removed But On public networks my servers block 110 and 143 This is pretty common practice I think I don’t think you would have any issue if you disabled SMTP initially negotiates unencrypted but upgrades to TLS
Cheers DB > On 4 Jun 2026, at 3:09 pm, Gary Bowling <[email protected]> wrote: > > > Has anyone removed all the unencrypted ports on your server? > > I still have a bunch of people logging in with pop3, but I'm trying to get > users to change those. And port 25 is still configured on my server. I'm not > sure how much use that has. > > I would like to get everyone off these ports and completely disable them on > my server. Not sure about port 25, whether that would cause a problem with > server-server communications, I need to do some checking to see how much that > is used. > > Just curious if anyone else has done this or tried it and had problems. And > if there are any additional gotchas or things you need to configure if you > disable these. > > > Thanks, Gary > > -- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] >
