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…

Hi there, does this help? [imagen] Connection to the POP3 server is failing with an authentication error. Please check your POP3 settings Support I recommend turning on 2FA on the account and setting up an App Password for Discourse. The policy change is a…

No, that does not help. I have had the “app password with 2FA” implemented since January. It is the app password with 2FA that has stopped working. Any other suggestions?

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

I retested email reply system this morning an now it is working. No changes. Nothing net new or different other than upgrade. We will see if it throws another error code.

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

Soporte

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

¿Hay algo en /logs o algún error en la cuenta de correo?
Además, ¿ayuda algo de aquí?

Tema		Respuestas	Vistas
Connection to the POP3 server is failing with an authentication error. Please check your POP3 settings Support	5	4334	26 Junio 2022
Gmail POP3 needs an app password nowadays Support	1	975	9 Junio 2022
Gmail POP3 authentication failed — switch to application password Support	5	1398	20 Febrero 2019
POP3 polling stopped working Self-hosting hosting	17	2979	30 Junio 2020
Email polling error with Google Apps Support	10	2638	25 Julio 2016

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

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