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Seth thank you.<br />
So what would you recommend in order to provider backup for mails once the Exch server is not available?
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Seth thank you.
So what would you recommend in order to provider backup for mails once the Exch server is not available?

<div>
it should try others in the list if one isn't available
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it should try others in the list if one isn't available

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Hi guys,<br />
<br />
One of our customers is working with multiple MX records as you can see in the attached screenshot.<br />
The primary mail server is Exchange based, while the lower Delivery Precedence MX's are Google Apps based.<br />
<br />
Even though the Exchange is fully available 24/7 with ~8.5 sec SMTP Transaction Time, some mails leak to Google Apps. <br />
<br />
- What may be the reason for this leakage?<br />
- Is there something wrong with our configuration?<br />
<br />
Thanks in advance<br />
<a href="https://filedb.experts-exchange.com/incoming/2014/12_w51/888791/1.jpg" target="_blank" class="file-inline" title="MX's (40 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>1.jpg</a>
</div>
</div>


1.jpg

Hi guys,

One of our customers is working with multiple MX records as you can see in the attached screenshot.
The primary mail server is Exchange based, while the lower Delivery Precedence MX's are Google Apps based.

Even though the Exchange is fully available 24/7 with ~8.5 sec SMTP Transaction Time, some mails leak to Google Apps. 

- What may be the reason for this leakage?
- Is there something wrong with our configuration?

Thanks in advance

Using multiple MX records for internal Exchange and Google Apps - turns to mails leakage to higher Delivery Precedence MX's

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.

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.