Jake Vickers:
> Are there good reasons to NOT use TLS on port 25? (ie: in master.cf: -o
> smtpd_use_tls=no)
> Curious as to if it breaks things for certain clients or something.
TLS support involves several thousand lines of Postfix code and
tens of thousands of lines of library code. Therefore, it will
have tens of bugs or more, depending on the development process (*).
That could be a reason not to enable TLS on an MTA that faces a
public network.
Wietse
(*) The frequency of mandatory updates is only one indicator.
