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Re: https://<FQDN>:<port> vs. https://<IP address>:<port>.



On Mon 10 Apr 2023 at 12:13:15 (-0700), peter@easthope.ca wrote:

> [ … ]

Others have covered your "oddity", likely caused by a certificate
that seems normal.

> As expected, login at https://hornby.islandhosting.com:2096 and at
> https://mail.easthope.ca:2096 appear equivalent.

I notice that 2096 is often a webmail port. Does that mean you've
given up on sending emails by their submission port? Your emails
on this topic suddenly stopped after March 26.

I would point out that there's a small but important difference
between the Debian READMEs on bullseye and bookworm:

  $ diff -ubw README.Debian-bookworm README.Debian-bullseye
  --- README.Debian-bookworm      2023-02-04 06:33:00.000000000 -0600
  +++ README.Debian-bullseye      2023-04-10 22:32:29.989821250 -0500
  @@ -767,9 +767,7 @@
      REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE/REMOTE_SMTP_SMARTHOST_PRIVATEKEY
      respectively.
   
  -   To use TLS on connect set "protocol = smtps" on the respective
  -   transport. (For the remote_smtp_smarthost transport the macro
  -   REMOTE_SMTP_SMARTHOST_PROTOCOL can be used.
  +   TLS on connect is not natively supported.
   
   2.2.2. TLS support for Exim as server

So if the method I suggested doesn't work, you could try out the
version of exim4 from bullseye-backports, which also contains
this change.

Cheers,
David.


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