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You are correct this is my OWA server. &nbsp;However after some more digging I don't think it is Verizon. &nbsp;Well it is partly but i checked propagation from whatsmydns.net and it appears that some DNS Servers are not updating with the same address. &nbsp;I moved my DNS server years ago and it is possible that I didn't have the old zones deleted.
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You are correct this is my OWA server.  However after some more digging I don't think it is Verizon.  Well it is partly but i checked propagation from whatsmydns.net and it appears that some DNS Servers are not updating with the same address.  I moved my DNS server years ago and it is possible that I didn't have the old zones deleted.

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Yes, something is not right that's for sure. Verizon should be able to find out why they're resolving to your old name though which is why I would encourage you to contact them. They know what forwarders and DNS servers they are relying on for their services. It might be they have no issue at all, but at least then you can rule them out.
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Yes, something is not right that's for sure. Verizon should be able to find out why they're resolving to your old name though which is why I would encourage you to contact them. They know what forwarders and DNS servers they are relying on for their services. It might be they have no issue at all, but at least then you can rule them out.

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There has been no further input. This is the only post that provides any methods of investigation or courses of action to pursue.
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There has been no further input. This is the only post that provides any methods of investigation or courses of action to pursue.

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Odd problem. &nbsp;My users that are have Verizon as &nbsp;their cellular service are getting the wrong IP address of my mail server when trying to connect via exchange. &nbsp;They are getting an IP that I haven't used in years. &nbsp;I have added screen shots of the AT&amp;T User vs the Verizon user. &nbsp;I have doublechecked my DNS provider (MediaTemple) and that is all configured correctly.<br />
<a href="https://filedb.experts-exchange.com/incoming/2017/06_w24/1172842/AT-T.png" target="_blank" class="file-inline" title="AT-T.png (351 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>AT-T.png</a><br />
<a href="https://filedb.experts-exchange.com/incoming/2017/06_w24/1172843/Verizon.png" target="_blank" class="file-inline" title="Verizon.png (207 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>Verizon.png</a>
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Verizon.png

AT-T.png

Odd problem.  My users that are have Verizon as  their cellular service are getting the wrong IP address of my mail server when trying to connect via exchange.  They are getting an IP that I haven't used in years.  I have added screen shots of the AT&T User vs the Verizon user.  I have doublechecked my DNS provider (MediaTemple) and that is all configured correctly.

DNS Response on Verizon Cell Service

Verizon

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.

A cellular phone (also known as a mobile phone, cell phone, hand phone, or simply a phone) is a telephone that can make and receive telephone calls over a radio link while moving around a wide geographic area by connecting to a cellular network provided by a mobile phone operator, allowing access to the public telephone network. Mobile phones that offer services such as text messaging, email, Internet access, business applications, gaming, photography and more general computing capabilities are referred to as smartphones.