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Hi there, Joewy1.<br />
<br />
I'm afraid that I don't have a 'list', but I may be able to help you narrow down and isolate the problem. &nbsp;Generally speaking, I don't use Outlook Anywhere - but I DO use Outlook Web Access, and they share many of the same requirements and prerequisites. &nbsp;So, my initial questions to you;<br />
<br />
1) &nbsp;Have you ensured that your firewall has the appropriate ports opened? &nbsp;For example, you might come unstuck if port 443 isn't available from outside (this is used by default for HTTPS &amp;&nbsp;SSL data transfer).<br />
2) &nbsp;The most obvious question, perhaps - precisely what happens when you attempt to use Outlook Anywhere from outside your network? &nbsp;What are the symptoms of failure?<br />
3) &nbsp;Does Outlook Web Access (OWA) work from outside?
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Hi there, Joewy1.

I'm afraid that I don't have a 'list', but I may be able to help you narrow down and isolate the problem.  Generally speaking, I don't use Outlook Anywhere - but I DO use Outlook Web Access, and they share many of the same requirements and prerequisites.  So, my initial questions to you;

1)  Have you ensured that your firewall has the appropriate ports opened?  For example, you might come unstuck if port 443 isn't available from outside (this is used by default for HTTPS & SSL data transfer).
2)  The most obvious question, perhaps - precisely what happens when you attempt to use Outlook Anywhere from outside your network?  What are the symptoms of failure?
3)  Does Outlook Web Access (OWA) work from outside?

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OWA works fine.<br />
port 443 must be ok as well as my certificate because OWA uses https<br />
<br />
it fails during the auto discovery process<br />
it act like it doesn't know where to go. i think it may be external dns issue
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OWA works fine.
port 443 must be ok as well as my certificate because OWA uses https

it fails during the auto discovery process
it act like it doesn't know where to go. i think it may be external dns issue

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i have an exchange 2007 box. the outlook anywhere works internally but not from the outside. does anyone know of a checklist or common mistakes that i could check to see what the issue is?<br />
<br />
thanks so much in advance
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i have an exchange 2007 box. the outlook anywhere works internally but not from the outside. does anyone know of a checklist or common mistakes that i could check to see what the issue is?

thanks so much in advance

Outlook anywhere works internally but not from the internet..

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.