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…

El sondeo POP3 de Gmail falla después de la actualización a 3.5.0.beta8-dev

NateDhaliwal (NateDhaliwal) 6 Julio, 2025 12:00 4

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

Tema		Respuestas	Vistas
Connection to the POP3 server is failing with an authentication error. Please check your POP3 settings Support	6	4083	26 Julio 2022
Gmail POP3 needs an app password nowadays Support	2	916	9 Junio 2022
POP3 polling stopped working Support	18	2809	30 Junio 2020
Gmail POP3 authentication failed — switch to application password Support	6	1344	22 Marzo 2019
Email polling error with Google Apps Support	11	2589	25 Julio 2016