Sometimes during updates, certain settings will revert to their default values. Since you have customized your settings, it may be necessary to update some of your custom settings after the update. 1. Open Mail. 2. From the main toolbar, click Mail and then Preferences. 3. Click the account for which you are making the changes. 4. Using the information in Steps 10 and 11 in the Mac Email setup article, verify all of the information in account information is correct. 5. Click the Advanced tab. 6. Verify the Port, Use SSL, and Authentication settings are correct according to Step 12 in the Mac Email setup article. Please help Thanks
I didn't find the right solution from the Internet.
JoeClark replied
398 weeks ago