We have tried using every form of the login info, both SSL and non SSL, including allow insecure login.
Both IP's that show up are whitelisted.
This is the other log entry:
2019-11-18 12:00:13 dovecot_login authenticator failed for c-IPREMOVED.hsd1.wa.comcast.net ([<INTERNALIPREMOVED>]) [IPREMOVED]:62140: 535 Incorrect authentication data (set_id=
[email protected])
2019-11-18 12:00:23 dovecot_login authenticator failed for c-IPREMOVED.hsd1.wa.comcast.net ([<INTERNALIPREMOVED]) [IPREMOVED]:62140: 535 Incorrect authentication data (set_id=
[email protected])