I’m trying to sort out a problem with Roundcube failing to send email with an error message that says SMTP Error(): authentication failed. In the roundcube error log I find this:
[16-Jun-2024 13:58:24 -0500]: <5s9tomcd> PHP Error: SMTP server does not support authentication (POST /webmail/?_task=mail&_unlock=loading1718564304121&_framed=1&_action=send) [16-Jun-2024 13:58:24 -0500]: <5s9tomcd> SMTP Error: Authentication failure: mail.stovebolt.com <http://mail.stovebolt.com/> I was pretty sure that I had authentication enabled and working on Postix. grep smtpd_sasl /etc/postfix/main.cf smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname To test this I used openssl s_client to connect to postfix. I typed EHLO, then typed AUTH LOGIN. I was prompted for a username (converted to base 64), which I entered, and then for a password, which I entered. I was then able to type commands as expected. I also tested using an incorrect password, and the login was rejected. So, it appears to me that postfix is working correctly Paul Schmehl paul.schm...@gmail.com
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