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SMTP Error(250): Authentication failed.

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giorgio:
Hi,

I have installed postfix+dovecot+roundcube.

If I send an email from roundcube I immediately receive the error

SMTP Error(250): Authentication failed

[07-May-2021 20:06:57 +0200]: <np0qq8it> PHP Error: SMTP server does not support authentication (POST /?_task=mail&_unlock=loading1620410817331&_framed=1&_lang=en&_action=send)
[07-May-2021 20:06:57 +0200]: <np0qq8it> SMTP Error: Authentication failure: SMTP server does not support authentication (Code: ) in /var/www/roundcube/program/lib/Roundcube/rcube.php on line 1702 (POST /?_task=mail&_unlock=loading1620410817331&_framed=1&_lang=en&_action=send)

Can you help me?

alec:
Configure Roundcube to use ssl/tls (smtp_server, smtp_port).

giorgio:
I put it with the installer.....
I changed the configuration by entering the correct values and corrected the Postfix smtp-auth section in postix and now it works.
Thanks

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