Subject

I would like some feedback concerning a use case

Description

HI I try to configure docker mail server behind traefik following thins works:
send internal mail from outside
send mail to outside
note: for that I must add "traefik.tcp.routers.esmtp.tls.passthrough=true" to esmtp and imap on traefik

but I can't receive mail from another domain behind traefik but telnet on port 25 works
I have try to put docker-mail server port 25 in front and in this case everything works
I have correctly put following parameter (using edge)

submission/inet/smtpd_upstream_proxy_protocol=haproxy
submissions/inet/smtpd_upstream_proxy_protocol=haproxy

and

postscreen_upstream_proxy_protocol = haproxy

try to change traefik service terminaison time but doesn't work too

I don't see any log for this request in DMS so I suposse that traefik drop request but don't know why or missing something in postscreen config for reverse proxy?