SMTPS vs Submission in Sendmail

I noticed a mail server I recently became the admin of has both
SMTPS and Submission running for users to send mai through. As far as
I can tell the two do basically the same thing. On that assumption, I
would like to apply the KISS rule and use just one or the other. Which
is one is best is for users to send email?

-Clay

Re: SMTPS vs Submission in Sendmail

In article ,
Clay wrote:

>
> I noticed a mail server I recently became the admin of has both
> SMTPS and Submission running for users to send mai through. As far as
> I can tell the two do basically the same thing. On that assumption, I
> would like to apply the KISS rule and use just one or the other. Which
> is one is best is for users to send email?

Presumably you mean port 465 (SMTP immediately over SSL) and port 587
submission that allows the negotiation of a TLS session and is a
slightly different protocol than SMTP.

The registered port using a well-specified protocol (i.e. mail
submission on port 587) is a better approach. If you can turn off the
decade-obsolete port 465 service, you should try to do so.

--
Now where did I hide that website...