Do you have Exchange running in your environment but are having trouble connecting iPhones and Android phones? ActiveSync is much more preferable to POP or IMAP, so hunker down and fix ActiveSync on your server to get email, calendar, and contacts synched with your smartphones. Below are two of my favorite links for troubleshooting ActiveSync on Exchange and Small Business Server 2003. I was able to resolve issues on a few servers who’s certificates had expired by using the following resources:
Alan Hardisty’s ActiveSync Configuration Guide is a great starting point:
Secondly, the following website can test Exchange connectivity in a number of different ways:
https://testexchangeconnectivity.com/
The site above is able to test exchange connectivity with the following tests:
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Microsoft Exchange ActiveSync Connectivity Tests
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Microsoft Exchange Web Services Connectivity Tests
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Microsoft Office Outlook Connectivity Tests
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Internet E-Mail Tests
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