I am running macOS High Sierra Version 10.13.6
Airmail 3 Version 3.6.54 (537)
Until I updated SpamSieve this afternoon everything worked great. After the update, I can no longer send or receive mail.
In looking at Airmail 3 - Preferences - Accounts - User - TEST IMAP, I get the following error:
IMAP TEST FAILED
The settings are not valid:
Unable to authenticate with the current session’s credentials.
Any ideas or help would be appreciated.