[rt-users] Could someone help a newb evaluating RT with email setup?

John Buell jbuell at countrysampler.com
Tue Feb 19 17:57:03 EST 2013

Interesting. I just did a single A record locally for the rt host, didn't change or set a new mx record at all, and I've just let postfix and Exchange 2010 sort it out. Step by step, the instructions that Aaron set up on the Wiki worked perfectly for Exchange 2010 as well. I think it was just my lack of not having used postfix in a while that got me. :)

-----Original Message-----
From: rt-users-bounces at lists.bestpractical.com [mailto:rt-users-bounces at lists.bestpractical.com] On Behalf Of Craig Ringer
Sent: Tuesday, February 19, 2013 4:52 PM
To: Aaron Guise
Cc: rt-users at lists.bestpractical.com
Subject: Re: [rt-users] Could someone help a newb evaluating RT with email setup?


I'm using a similar setup here, and find that it works very well. My configuration is:

* Addresses are aliases on top-level domain that redirect to same address name on subdomain
* Subdomain is defined in DNS with a single MX record pointing to the subdomain name, which has an A record pointing to the RT host
* Postfix configured to use a smarthost with SMTP+TLS and authentication for outbound mail

The aliases rewrite the destination addresses so I don't have to play games with telling Postfix that it handles mail for the top level domain by putting it in `mydestination`. Nor did I have to change postfix's `origin`; you can set the email sender address in RT, so it's quite fine for postfix to announce its self as the subdomain while delivering mail with "From:" headers of the main domain. The user never sees the subdomain addresses in email.

All I had to do was add:

relayhost = [my.smtp.smarthost]:587
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/maps/relay_password 
smtp_sasl_security_options =   

to main.cf, create /etc/postfix/maps/relay_password as:

my.smtp.smarthost   smtp-username:smtp-password

and postmap it. Then for each of my queues I just entered the top-level domain aliases for the correspond and comment addresses, so RT would use these correctly in outbound mail.

Hope this is useful.

Craig Ringer

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