Resolved gmail SMTP authentication problem

[Ana Carolina P Paula]

I have a new server with Plesk Obsidian 18.0.21 , and tried to config the first gmail account to check client email. So I have the pop error and fixed with this solution mentioned here Gmail POP3 Accounts Error [AUTH] Plaintext authentication disallowed on non-secure (SSL/TLS) connections » Design Haven

So now I just can't fix the SMTP error ... when I login I set the 25 door domain.com as server and TLS as the config plesk page says... and get the error:
Falha de autenticação. Verifique seu nome de usuário/senha.
O servidor retornou um erro: "334 PDE0MDUwMTgxNTMuMTQ2MDI4NTZAbnM1MDgyMTEuaXAtMTk4LTI3LTgwLm5ldD4= , code: 334"


can some one help me please! trying to fix this all day!

 

[Ana Carolina P Paula]

Solved already after a day looking for it. Error 334 gmail authentications with plesk obsidian

Open and edit /etc/postfix/main.cf configuration file and comment out the following lines:

#smtpd_tls_protocols = SSLv3, TLSv1
#smtpd_tls_ciphers = medium
#smtpd_tls_exclude_ciphers = aNULL
#smtpd_sasl_security_options = noplaintext
#smtpd_tls_auth_only = yes
#tls_ssl_options = NO_COMPRESSION

save and # service postfix reload