<div dir="ltr"><div><div><div>In order to recieve email, the interwebs must be able to find your system. That is done by the host and domain name. You will need to be using real ones so postfix will understand what domains it's really supposed to accept mail for.<br>
<br></div>I have the domain <a href="http://jimkinney.us">jimkinney.us</a>. So I put that into my mailserver so it knows where it is. I have my DNS records set to send mail to my server (<a href="http://barkingcat.jimkinney.us">barkingcat.jimkinney.us</a>). So the mailserver knows it's name is barkingcat on the domain <a href="http://jimkinney.us">jimkinney.us</a>. Now when mail is _sent_ it shows in the headers to have been sent from <a href="mailto:me@jimkinney.us">me@jimkinney.us</a> and it originated from <a href="http://backingcat.jimkinney.us">backingcat.jimkinney.us</a>.<br>
<br></div>So you will need to put in your FQDN (mine is <a href="http://barkingcat.jimkinney.us">barkingcat.jimkinney.us</a>) for the hostname and the full domain name (mine is <a href="http://jimkinney.us">jimkinney.us</a>).<br>
</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Dec 17, 2013 at 11:02 AM, Adrya Stembridge <span dir="ltr"><<a href="mailto:adrya.stembridge@gmail.com" target="_blank">adrya.stembridge@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I'm attempting to set up my trac installation to accept replies via email. This is the first time configuring a machine to receive mail, and I have a noobish question. <div>
<br></div><div>In postfix/main.conf I am asked to provide "myhostname", which the examples show as '<a href="http://mail.example.com" target="_blank">mail.example.com</a>'. The next config item is "mydomain", which the examples show as '<a href="http://example.com" target="_blank">example.com</a>'. </div>
<div><br></div><div>I don't expect much inbound mail traffic. Is it necessary to have a subdomain for mail to be received? If not, is there any gotchas with having identical values for "myhostname" and "mydomain"?</div>
<div><br></div><div>PS: I'm actually able to establish a connection to my server both locally and remote using "telnet <a href="http://example.com" target="_blank">example.com</a> 143" even though my "myhostname" value is '<a href="http://mail.example.com" target="_blank">mail.example.com</a>'. The connection fails with "telnet <a href="http://mail.example.com" target="_blank">mail.example.com</a> 143" since that subdomain is not configured in DNS. </div>
<div><br></div><div>Thanks.</div></div>
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