1. Visit the Troubleshoot & Resolve Tool
2. To troubleshoot your device:
3. Make sure you have the device you're troubleshooting.
4. You may need to sign in to your myAT&T account.
5. Visit att.com/devicetroubleshoot.
6. If the device you're troubleshooting isn't presented, select Change and choose the correct device.
7. Select a Service-Related or Device-Related Issue from the list.
8. Follow the steps to address your particular issue.
If you have questions or need any assistance troubleshooting, just visit: Att Email Problems | att imap settings