Help Article Troubleshoot Errors in mac OS Sierra Mail Setup

This guide will help you fix errors in the setup of macOS Sierra Mail.

Note:

• Is this the first time you’re setting up this email account? Then use our macOS Sierra setup guide, rather than this troubleshooting guide.
• Change example.com to your domain name

Check account settings

1. From the top menu choose Mail > Preferences…

Account Information

2.  On the Accounts tab, choose the relevant account from the list on the left, and check:

• Enable this account is checked
• Download attachments is set according to your preference

3. Click Server Settings

Server Settings

4. Check:

• Incoming Mail Server (IMAP)
  • User Name is the full email address
  • Password is correct – forgotten passwords can be reset in konsoleH
  • Host Name is mail.domain (or the specific server name or IP address of the domain)
• Outgoing Mail Server (SMTP)
  • User Name is the full email address
  • Password is correct – forgotten passwords can be reset in konsoleH
  • Host Name is smtp.domain (or the specific server name or IP address of the domain)

Important

5. Deselect (uncheck) the boxes for Automatically manage connection settings for both Incoming and Outgoing Mail Servers – additional fields will now be displayed.

6. Select Advanced IMAP Settings

7. Select Allow insecure authentication > OK

8. Deselect (uncheck) the boxes for Use TSL/SSL for both Incoming and Outgoing Mail Servers.

9. Click Save. (Note: this button only becomes visible when settings have changed)

Your macOS Sierra mail is now setup correctly.