[Dovecot] unable to send mails via postfix/dovecot SASL

[Michal Szymanski]

> 
> I don't see any references to tls in your postconf -n output.  Has
> postfix been built with openssl?

I guess so. 'ldd /usr/sbin/postfix' gives, amoung others:

    libsasl2.so.2 => /usr/lib64/libsasl2.so.2 (0x00002b71e8eea000)
    libssl.so.6 => /lib64/libssl.so.6 (0x00002b71e9103000)

I did not put any 'tls' options into main.cf (nor the -o smtpd_tls_wrappermode
option in master.cf) as the postfix/dovecot/SASL howto on dovecot's wiki
does not mention it at all. So I thought that TLS is not required to
make SASL authetication. Am I wrong?

I have actually enabled the smtpd_tls_wrappermode option for a while
while trying to make it work but it resulted in immediate postfix
failure (probably this would require other tls options enabled, too), so
I backed off.

I have the SMTP outgoing server in T'bird set to SSL which makes the
default port 465 to be used. When I change this to TLS, the default
seems to be the "plain" port #25.

> Also, postfix 2.3 is quite old, for a new installation consider a more
> recent version.

Well, that may be worth trying but I guess (as it has already happened
with dovecot update from 1.0.6 to 1.1.16 version) that, although it may
be a good idea in general, it will not help with my current problem.
I think that properly configured postfix/dovecot (in versions generally
available for RHEL/CentOS 5.3) should work with authentication.

regards, Michal.

-- 
  Michal Szymanski (msz at astrouw dot edu dot pl)
  Warsaw University Observatory, Warszawa, POLAND

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