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? [imagem] 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.

Pesquisa POP3 do Gmail falhando após atualização para 3.5.0.beta8-dev

Suporte ao Produto

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

Algo em /logs, ou algum erro na conta de e-mail?
Além disso, algo em aqui ajuda?

Tópico		Respostas	Vistas
Connection to the POP3 server is failing with an authentication error. Please check your POP3 settings Product Support	5	4557	26 Junho , 2022
Gmail POP3 needs an app password nowadays Product Support	1	1030	9 Junho , 2022
Gmail POP3 authentication failed — switch to application password Product Support	5	1539	20 Fevereiro , 2019
POP3 polling stopped working Self-hosting hosting	17	3250	30 Junho , 2020
Email polling error with Google Apps Product Support	10	2774	25 Julho , 2016

Pesquisa POP3 do Gmail falhando após atualização para 3.5.0.beta8-dev

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