"Out the box" OTRS will be using sendmail (which in turn will pass it to postfix).
Check /etc/postfix/main.cf and look for the value myhostname or myorigin and see what the values are. myorigin is usually configured to point to /etc/mailname which is a text file that will contain the FQDN of your server which postfix uses when it performs HELO (don't forget to restart postfix after making any changes). Steve On 25 June 2013 15:05, Jason Marshall <jas...@cat.co.za> wrote: > Not entirely sure, but I used the standard Ubuntu installation, so it would > be Postfix which SMTP I guess. > > -----Original Message----- > From: Steven Carr [mailto:sjc...@gmail.com] > Sent: 25 June 2013 03:51 PM > To: jas...@cat.co.za; User questions and discussions about OTRS. > Subject: Re: [otrs] fully-qualified hostname issue > > How is OTRS configured to deliver email? Sendmail or SMTP? > > Steve > > > On 25 June 2013 14:46, Jason Marshall <jas...@cat.co.za> wrote: >> >> >> Hi All >> >> >> >> I am running OTRS version 3.2.2 on Ubuntu 12.04 Server. >> >> >> >> I have an issue with mails going out to some client. I suspect their >> mailers are doing a DNS lookup or verifying for a valid or FSDN from/return >> address. >> >> >> >> When I mail the clients from my own mail client (outlook or >> thunderbird) it works fine. >> >> When I respond to the client from OTRS the mails are rejected by the >> remote mailer. See error below: >> >> >> >> ---------------------------------------------------------------------- >> -------------------------------------- >> <ettiene.vanderw...@axis.com>: host anubis.se.axis.com[195.60.68.12] said: >> 504 >> 5.5.2 <Ubuntu-OTRS>: Helo command rejected: need fully-qualified >> hostname >> (in reply to RCPT TO command) >> >> ---------------------------------------------------------------------- >> ------------------------------------ >> >> I tried changing the actual Ubuntu host name to a FQDN but it still >> does not work. >> >> I tried looked in the admin - framework settings for any way of >> sending mails out with ha FSQN but I cannot find any settings there. >> >> >> >> Our mailer has a valid MX record, so I am not sure where to start looking. >> >> >> >> If any person can direct me in the right direction I would highly >> appreciate it. >> >> >> >> Kind Regards >> Jason >> >> >> --------------------------------------------------------------------- >> OTRS mailing list: otrs - Webpage: http://otrs.org/ >> Archive: http://lists.otrs.org/pipermail/otrs >> To unsubscribe: http://lists.otrs.org/cgi-bin/listinfo/otrs > --------------------------------------------------------------------- OTRS mailing list: otrs - Webpage: http://otrs.org/ Archive: http://lists.otrs.org/pipermail/otrs To unsubscribe: http://lists.otrs.org/cgi-bin/listinfo/otrs