On Fri, Apr 17, 2026 at 09:53:14PM -0000, Matthew M. via Postfix-users wrote:
> Check your config values. A basic SASL configuration:
>
> relayhost = [outbound.domain.com]:587
> smtp_sasl_auth_enable = yes
> smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
> smtp_sasl_security_options = noanonymous
> smtp_tls_security_level = may
> smtp_use_tls = yes
>
> Matching credentials in /etc/postfix/sasl_passwd
>
> [outbound.domain.com]:587 username:password
The above is not relevant. That's not the question here. The OP is
trying to enable server-side SASL, so that his own submission server
allows MUAs to submit email. The problem isn't with authentication
to a remote relayhost.
--
Viktor. 🇺🇦 Слава Україні!
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