[rt-users] RT 4.0.8 still not receiving incoming tickets via email on ubuntu

[Tim Cutts]

On 20 Nov 2012, at 14:58, testwreq wreq <testwreq at gmail.com> wrote:

> I used sendmail command locally on the Rt server to send mail to rt4. I am unable to see the ticket generated in the RT interface. These are from mail.log on the RT server.
> Nov 20 09:43:18 rt4 sendmail[23208]: qAKEhIs6023208: from=wreq, size=34, class=0, nrcpts=1, msgid=<201211201443.qAKEhIs6023208 at rt4.sc.sbu.edu>, relay=wreq at localhost
> Nov 20 09:43:18 rt4 sm-mta[23209]: qAKEhIl0023209: from=<wreq at rt4.sc.sbu.edu>, size=347, class=0, nrcpts=1, msgid=<201211201443.qAKEhIs6023208 at rt4.sc.sbu.edu>, proto=ESMTP, daemon=MTA-v4, relay=localhost [127.0.0.1]
> Nov 20 09:43:18 rt4 sendmail[23208]: qAKEhIs6023208: to=rt4 at sc.sbu.edu, ctladdr=wreq (10007/10007), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30034, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (qAKEhIl0023209 Message accepted for delivery)
> Nov 20 09:43:18 rt4 sm-mta[23211]: STARTTLS=client, relay=edge1.sc.sbu.edu., version=TLSv1/SSLv3, verify=FAIL, cipher=AES128-SHA, bits=128/128
> Nov 20 09:43:19 rt4 sm-mta[23211]: qAKEhIl0023209: to=<rt4 at sc.sbu.edu>, ctladdr=<wreq at rt4.sc.sbu.edu> (10007/10007), delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=120347, relay=edge1.sc.sbu.edu. [130.245.9.210], dsn=2.0.0, stat=Sent (<201211201443.qAKEhIs6023208 at rt4.sc.sbu.edu> [InternalId=2648267] Queued mail for delivery)
>  
> Does this mean that the mail does not get from the local RT mail server to rt-mailgate and then RT itself?  What should be done to fix this?
> 

I don't know, I don't speak sendmail (I use exim on our RT server).  But what this suggests is that the config is correct for accepting the mail from the local host is correct, but the config for delivering the mail to rt-mailgate is wrong.  If you run mailq, you'll probably find that your test message is still sitting in sendmail's queue.

If I were you, I'd fix this part of the problem before moving on to the second part, because you clearly have two separate issues.

> When I send email to rt4 using exchange, then it does not reach the server mail.log.

Not at all?  Not even in the rejection logs?

That sounds like you have also misconfigured sendmail's listening to the outside world.  If you go to another machine and telnet to port 25 on your RT server, do you get an SMTP prompt, or a connection timeout?   If you get the timeout, or connection refused, than you know that sendmail isn't listening properly, so you'll need to fix that part of the configuration.

One question I have for you:  why did you choose sendmail as the Mail Transfer Agent to use?  It's not the default on Ubuntu (nullmailer is), and there are at least three alternatives which are (a) command line compatible with sendmail and (b) a lot simpler to configure, and those are, in no particular order, exim, postfix and smail.

You might save a lot of pain by finding a local UNIX mail expert in one of those mail transfer agents (it doesn't matter which), and get them to help you configure it properly.  It's not something we can easily help you with remotely on this list; there are too many variables, and if you've never configured a UNIX mail transfer agent before there are a lot of pitfalls involved, in which you could accidentally set yourself up as a mail relay and have spammers abusing your system, for example.

The fetchmail alternative might sound more complex to you, but it's actually simpler and less vulnerable to the above sort of mistake, because it avoids the step of having to configure your MTA correctly with regard to receiving external email.  It only has to handle the much simpler case of local mail, internal to your RT server, and sending out to your Exchange server (which you already have working). 

Regards,

Tim

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