gsuite fail to authenticate postfix

Asked Sep 25 '20 at 15:40

Active Sep 25 '20 at 15:40

Viewed 45 times

I have a ubuntu 18.04 running postfix to deliver mail with gsuite smtp.

I configured postfix following this guide and followed all the steps to create a password specific for the postfix app.

I tried to send a test email but I still receive the following error:

Sep 25 17:36:31 mail postfix/error[8970]: 8CF1C1E240: to=xxx.xxx@gmail.com, relay=none, delay=0.02, delays=0.01/0.01/0/0, dsn=4.7.8, status=deferred (delivery temporarily suspended: SASL authentication failed; server smtp.gmail.com[74.125.71.109] said: 535-5.7.8 Username and Password not accepted. Learn more at?535 5.7.8 https://support.google.com/mail/?p=BadCredentials f23sm3095998wmc.3 - gsmtp)

I also tried to reissue a new password but still I get the same error. I tried restarting the service (postfix) and also the server with no luck.

Any hint why I get this error?

asked Sep 25 '20 at 15:40

Lelio Faieta

Check the mail logs on your server. – Michael Hampton Sep 25 '20 at 17:25
Server log is already in the question. No other errors or issues for each attempt – Lelio Faieta Sep 25 '20 at 18:06
You should have more log entries than that! Post the rest of them. – Michael Hampton Sep 25 '20 at 18:08

gsuite fail to authenticate postfix

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