I tried connecting her phone and received this error: Exchange Account Unable to Verify Account Information Ensuring that Exchange ActiveSync is working properly on both your Exchange infrastructure and your users’ myriad mobile devices is one of the most important things you can do. His iPhone has always worked with Exchange 2013 no problem. Active 10 years, 5 months ago. So I tried deleting the account resenting it up and other troubleshooting steps and none of it worked. Make sure you have setup everything using Exchange ActiveSync… Modern Authentication is a prerequisite to apply MFA on the user. Exchange ActiveSync iPhone troubleshooting 12 Fixes to Make iPhone Sync With Exchange Serve . I have a client with an Exchange 2007 Server. A recent example of this issue was Apple iOS 4.0 devices retrying a full sync every 30 seconds (see TS3398). Help Identify My Issue with DNS of My Domains in Office365 Exchange This test will check the external domain name settings for your verified domain in Office 365. Troubleshooting some Exchange 2010 + iPhone email authentication problems. 2469722 Unable to connect using Exchange ActiveSync due to Exchange resource consumption. You'll also get tips and advice on how to avoid common iPhone and Exchange Server setup issues; how to mitigate iPhone security risks in the enterprise; and discover how the iPhone stacks up against Windows Mobile, BlackBerry and other mobile devices. Running Exchange 2013 on Windows 2012. Add your Exchange account The meeting still shows the old date/time. Her previous phone stopped using activesync suddenly on January 20, 2017. I had a similar issue where my iPhone 6 connected fine to Exchange but my coworker's didn't. Find out how to configure Exchange ActiveSync to synchronize Apple iPhone and Exchange Server email, calendars and contacts. Frequently we are facing below issues with Iphones which is configured to use Exchange ActiveSync. Most common providers have this option, but it could be your cause. Knowing what to look at and how to troubleshoot are critical skills. Turn the MSExchange-ActiveSync options up to High and try to sync your iPhone and see if you get anything useful. To help address this, the Exchange team has created a new Exchange ActiveSync Logo program for devices that use Exchange ActiveSync. Confirm your email provider uses Exchange ActiveSync technology. Calendar sync – When a meeting is rescheduled through Outlook, it does not get updated in iPhone calendar. I cannot connect to any exchange servers with a new iPhone as well as an older one. So I searched around online and found this solution: The issue was due to that user activating more than 10 devices on his Exchange ActiveSync account. Over the weekend, he had set his out of office reply from his Office computer. Ask Question Asked 10 years, 5 months ago. We will update this document as we identify new issues that apply to third-party devices that use the Exchange ActiveSync protocol. Set up Exchange ActiveSync on your iPhone, iPad, or iPod touch When you add your Exchange ActiveSync account, you can sync your Mail, Contacts, Calendars, Reminders, and Notes with your iOS device. She purchased a new iPhone. Problem with mail native apps with Modern Auth & Exchange ActiveSync Disabled [Azure AD MFA] Since iOS 11.3.1, the native mail app can support Modern Authentication. Employee which happens to be the boss of the company is having trouble getting emails on his iPhone. He was heading out of town.