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Looks like problem is resolved now...<br />
<br />

<pre><code class="code-1 nolinks" id="code-20-42666537-1"><span>imac&gt; dig +short snapex03.snapdrape.com a</span>
<span>173.74.102.77</span>
<span></span>
<span>imac&gt; dig +short -x 173.74.102.77</span>
<span>snapex03.snapdrape.com.</span>
</code></pre>
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1. The <b>220*****************</b> is probably some sort of firewall, altering the SMTP transaction. Cisco devices usually do that. <br />
2. Mismatched rDNS and PTR name are VERY common, probably occurs more often than not. Provided you have some sort of PTR in place that does not look like a home connection, that should be fine.
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Mismatched rDNS and PTR records are TOO common -- and the BIG mail vendors (Google [gmail], Microsoft [hotmail, outlook, msn], AOL [yes, they're still big -- don't know why, but they are!], and many others) are starting to crack down on this because of the spoofing that goes on to PURPORT to be from one domain, but really isn't.<br />
<br />
*IF* you cannot fix this issue, then at least make sure your DMARC, DKIM, and SPF entries are enabled and correct. If you knock on Google's door, have no SPF, no DKIM, no DMARC, and your FCrDNS (Forward Confirmed rDNS) fails -- your mail will either be blocked altogether, or minimally dropped into recopients' Junk folders.<br />
<br />
SMTP is one of the Internet's OLDEST protocols, and it openness to abuse is LEGENDARY. But the abuse is (and has been) out of control, and the big players are leveraging their market share to FORCE smaller players to play by the MODERN rules (ca. 2010 vs 1990!).<br />
<br />
It appears to me that you're trying to &quot;do the right thing&quot; -- and that's not easy. Getting a mail server up and running properly is a hard enough task, but making it play well with others -- especially the &quot;big boys&quot; is another, separate but equally challenging task!<br />
<br />
Good Luck<br />
<br />
Dan
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No response from asker. The solutions in these comments will resolve the issue.
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<div class="content wysiwyg-content">
MX Tools says my Reverse DNS does not match SMTP Banner. &nbsp;I attached a screenshot showing my PTR and my banner, and they do match, unless I am missing something.<br />
<a href="https://filedb.experts-exchange.com/incoming/2018/08_w35/1377763/rDNS.png" target="_blank" title="rDNS Screenshot (76 KB)"><img alt="rDNS Screenshot" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2018/08_w35/800_1377763/rDNS.png" /></a><a href="https://filedb.experts-exchange.com/incoming/2018/08_w35/1377759/rDNS.docx" target="_blank" class="file-inline" title="rDNS.docx (87 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>rDNS.docx</a><br />
<a href="https://filedb.experts-exchange.com/incoming/2018/08_w35/1377761/rDNS.png" target="_blank" class="file-inline" title="rDNS.png (76 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>rDNS.png</a>
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rDNS.docx

rDNS.png

MX Tools says my Reverse DNS does not match SMTP Banner.  I attached a screenshot showing my PTR and my banner, and they do match, unless I am missing something.


Reverse DNS does not match SMTP Banner

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.