title: Heroku - can't set up custom domain name
body: <p>I have the same problem as <a href="https://stackoverflow.com/questions/35472828/custom-domain-names-heroku">tdrsam</a>, but it went unanswered so I am posting my own version. I have a heroku app and my own domain name registered with Godaddy. I have followed <a href="https://devcenter.heroku.com/articles/custom-domains#view-existing-domains" rel="nofollow noreferrer">the guide</a> referenced in similar posts. After using <code>$ heroku domains:add</code>, a check <code>$ heroku domains</code> shows my app has a custom domain with my registered domain name and a DNS target name (domain name with <code>.herokudns.com</code> tacked on). Following the guide, at Godaddy I entered the DNS target in the CNAME record for www.  Back in the Heroku CLI, the first time I do <code>host &lt;myappname&gt;</code> I get 2 lines that say <code>&lt;myappname&gt; has address &lt;IP number&gt;</code> with 2 slightly different IP numbers and a line saying <code>&lt;myappname&gt; not found: 3(NXDOMAIN)</code>. Godaddy tells me I need an A record which has to be an IP address, so I created 2 A records with the 2 IP addresses from the host command.  Now when I do another host command, there is no "app not found" message, but one saying <code>&lt;myappname&gt; mail is by...</code>, which must be the DNS MX record. BUT, <code>&lt;myappname&gt;</code> entered in a browser is not found. I have waited hours for the DNS to propagate--am I being impatient, or should I have seen something more positive with the host command?</p>