Is is possible to disable port 25 authentication in SM?

Question asked by Ben Conner - 9/27/2017 at 8:39 AM

Unanswered

Hi,

I recently found that some of my users are still using port 2 rather than 587 to authenticate. Is it possible to disable authentication on port 25?

Thanks!

--Ben

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Ben Conner Replied

9/27/2017 at 8:39 AM

Whups. That should have read ...using port 25.

Linda Pagillo Replied

9/27/2017 at 9:14 AM

Hi Ben. Check out this link: https://portal.smartertools.com/community/a86286/block-smtp-port-25-from-the-server-and-change-it-to-587.aspx

Does that help? Thanks.

Linda Pagillo Mail's Best Friend Email: linda.pagillo@mailsbestfriend.com Web: www.mailsbestfriend.com Office: 703.988.3606 Authorized Reseller of SmarterTools Products Authorized Reseller of Message Sniffer

Ben Conner Replied

9/27/2017 at 8:58 PM

Hi Linda,

That's close, but the member there wanted to block port 25. I can't do that as I send/receive mail from other servers. What I want to to is disable just authenticated access on port 25, leaving it open for non-authenticated traffic coming from other servers.

Thanks!

--Ben

Linda Pagillo Replied

9/28/2017 at 8:10 AM

Understood. I'm not sure if this is possible. I'm hoping that SM support will chime in here and let us know for sure.

Mark Thornton Replied

10/4/2017 at 11:01 PM

If the client authenticates using port 25 successfully, what is wrong with that? Is there a benefit to having the clients only use port 587? As long as port 25 doesn't allow relaying without authentication then I'm happy. I don't think there are different logs for smtp submissions, is there?

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