On 2024-06-16 at 21:54:34 UTC-0400 (Sun, 16 Jun 2024 20:54:34 -0500)
Paul Schmehl via Postfix-users <paul.schm...@gmail.com>
is rumored to have said:
I’m seeing this error in the roundcube logs:
[16-Jun-2024 20:28:58 -0500]: <n142glqv> SMTP Error: Authentication
failure: mail.stovebolt.com
PIPELINING
SIZE 900000000
VRFY
ETRN
STARTTLS
ENHANCEDSTATUSCODES
8BITMIME
DSN
SMTPUTF8
CHUNKING
That is the response to RC's EHLO command. It is a list of supported
SMTP extensions.
(Code: 250) in /var/www/html/webmail/program/lib/Roundcube/rcube.php
on line 1794 (POST
/webmail/?_task=mail&_unlock=loading1718587737852&_framed=1&_action=send)
[16-Jun-2024 20:34:16 -0500]: <n142glqv> PHP Error: SMTP server does
not support authentication
RC is correct in saying that the server does not support authentication,
because there is no AUTH line in that list.
This is proper because if you support PLAIN or LOGIN mechanisms, AUTH
should only be offered after TLS has been started. So RC should be
giving a STARTTLS command here, but it is not.
Configure Roundcube to use TLS and your problem should be solved.
(POST
/webmail/?_task=mail&_unlock=loading1718588056454&_framed=1&_action=send)
[16-Jun-2024 20:34:16 -0500]: <n142glqv> SMTP Error: Authentication
failure: mail.stovebolt.com
PIPELINING
SIZE 900000000
VRFY
ETRN
STARTTLS
ENHANCEDSTATUSCODES
8BITMIME
DSN
SMTPUTF8
CHUNKING (Code: 250) in
/var/www/html/webmail/program/lib/Roundcube/rcube.php on line 1794
(POST
/webmail/?_task=mail&_unlock=loading1718588056454&_framed=1&_action=send)
The odd thing is, I don’t see any connection attempts at all in the
mail logs. However, this log entry has me wondering. PHP Error: SMTP
server does not support authentication
Should postfix be announcing that it accepts AUTH LOGIN?
Not on an insecure unencrypted session. After starting TLS, a second
EHLO is sent and that will include AUTH.
--
Bill Cole
b...@scconsult.com or billc...@apache.org
(AKA @grumpybozo@toad.social and many *@billmail.scconsult.com
addresses)
Not Currently Available For Hire
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