1-Visitor

Question

Mail server stopped sending email

Forum|Forum|5 years ago
September 14, 2020
2 replies
4098 views

Hi, i had a mail server running fine, and today it decided to throw this error:

Error sending email due to [535-5.7.8 Username and Password not accepted. Learn more at_535 5.7.8 https://support.google.com/mail/?p=BadCredentials f13sm7504895ejb.81 - gsmtp_].The last server response was [535-5.7.8 Username and Password not accepted. Learn more at_535 5.7.8 https://support.google.com/mail/?p=BadCredentials f13sm7504895ejb.81 - gsmtp_] with return code [535].The error originated on host [c0c4f847d097].

Help please. Everything is configured as it should and i double checked everything.

16-Pearl

Hello @xotzHelper

If you are using gmail as your mail server ,can you please cross check whether you are using 2 step verification?.

If not please check that you had allowed less secure apps to access your account.

I hope you haven't changed your password on gmail .

Thanks

om dukiya

Author

1-Visitor

Hi !

No 2 step verification and i allow less secure apps.

I changed the password but i also changed it on mail server... is it a problem ?

Thanks @odukiya

VladimirRosu_116627

19-Tanzanite

What kind of authentication do you use? Something based on App Passwords, or your real user and password?

Author

1-Visitor

real user and password.

VladimirRosu_116627

19-Tanzanite

In this case: have you double checked if "Less Secure Apps" is still enabled for your account?

Google has a habit of turning that Off automatically if the account's not used.

I would suggest switching to 2 factor authentication and using an App Password anyway, as a best security practice.