On 19.08.22 02:12, Matus UHLAR - fantomas wrote:
you can define multiple transports in master.cf and use them if you need different client settings.
That's interesting, thank you for the tip and example configuration!

so you can use transport like "smtpssl:" in your *relayhost_maps:

smtpssl   unix  -       -       y       -       -       smtp
-o smtp_tls_wrappermode=yes
-o smtp_tls_security_level=encrypt


On 19.08.22 21:01, witcher wrote:
I'll be using the following example as the server I'm configuring is
using STARTTLS:

smtpstarttls   unix  -       -       y       -       -       smtp
-o smtp_tls_wrappermode=no
-o smtp_tls_security_level=may

I saw that the service name, here `smtpstarttls`, should be used in the
following format in the sender_relay file specified with
`sender_dependent_relayhost_maps` in main.cf:

m...@example.com        smtpstarttls:[smtp.example.com]:587

The error I'm encountering is the following one, taken from the postfix
logs:

Aug 19 20:37:55 portable-navi postfix/smtp[360340]: fatal: valid hostname or 
network address required in server description: 
smtpstarttls:[smtp.example.com]:587

oh!

http://www.postfix.org/postconf.5.html#sender_dependent_relayhost_maps

looks like sender_dependent_relayhost_maps requires just relayhost, not transport. It is also overridden with other settings, see the page above.

sender_dependent_default_transport_maps allows specifying transport, with some limits:

http://www.postfix.org/postconf.5.html#sender_dependent_default_transport_maps


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Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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