[rancid] problem sending on port 465

[heasley]

Tue, Dec 24, 2024 at 08:42:39AM +0300, Vacheslav:
> 
> Peace, we currently switched providers of our mail service, now it's using
> port 465.
> i managed to start nagios sending messages but rancid is not working.
> Previously, using sendmail everything was working.
> now i uninstalled sendmail and installed ssmtp with mailx.
> 
> rancid is displaying the following error in logs:
> 
> /sendmail: RCPT TO:<r_alfredo at contabo.de,> (501 syntax error)

> in /var/log/messges :
> 
>  /sendmail: 572 rancid at contabo.de host name is unknown
>  572 rancid at contabo.de host name is unknown

This error implies a problem with name resolution, not sendmail
(or whatever your MTA is).   You probably can not ping contabo.de
either.  You must fix your resolver configuration (/etc/resolv.conf).
contabo.de and its MX resolve properly for me.

> how can i switch rancid from sendmail to mailx or mail?

mailx, Mail, or mail do not behave the same as sendmail.  I would
suggest using postfix, which installs a compatible binary named
sendmail.