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you need to install you exchange certificate on your phone
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you need to install you exchange certificate on your phone

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We have created an internal DNS record and this has resolved the issue.
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We have created an internal DNS record and this has resolved the issue.

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What ports do I need to unblock on our firewall for my android phone to connect to our exchange server over wifi?
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What ports do I need to unblock on our firewall for my android phone to connect to our exchange server over wifi?

Unable to connect to exchange/activesync from smartphone over wifi

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

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.