I have had Gmail POP3 polling running since January using the App password method. No issues and all has been going great. I upgraded from 3.5.0.beta7-dev to 3.5.0.beta8-dev. I immediately received the following error in my admin panel: Connection to the POP3 server is failing with an authenticati…

Gmail POP3-Abfrage schlägt nach Upgrade auf 3.5.0.beta8-dev fehl

NateDhaliwal (NateDhaliwal) 6. Juli 2025 um 12:00 4

Anything in /logs, or any errors in the mail account?
Also, does anything in here help?

Thema		Antworten	Aufrufe
Connection to the POP3 server is failing with an authentication error. Please check your POP3 settings Support	6	4085	26. Juli 2022
Gmail POP3 needs an app password nowadays Support	2	916	9. Juni 2022
POP3 polling stopped working Support	18	2809	30. Juni 2020
Gmail POP3 authentication failed — switch to application password Support	6	1344	22. März 2019
Email polling error with Google Apps Support	11	2589	25. Juli 2016