Troubleshooting

What do the error messages mean?

Cannot authenticate to IMAP server: AUTHENTICATE failed


Cannot authenticate to IMAP server: [ALERT] Invalid credentials (Failure)


Cannot authenticate to IMAP server: [ALERT] Please log in via your web browser


User is authenticated but not connected.


The following errors may be due to the server configuration options that you are using. Contact your administrator for more details.


What to do if emails stopped syncing?


What to do if not all emails are syncing?