On Mon, May 13, 2013 at 6:42 PM, Noel Jones <[email protected]> wrote:
> Don't forget that all the other main.cf parameters are still in
> effect on your "submission" entry; likely you're seeing unintended
> spillover.
>
> I suggest setting ALL the smtpd_*_restrictions entries for
> submission in master.cf so you don't have unexpected results.
>
> submission inet n - n - - smtpd
> -o smtpd_tls_security_level=encrypt
> -o smtpd_sasl_auth_enable=yes
> -o milter_macro_daemon_name=ORIGINATING
> -o smtpd_client_restrictions=
> -o smtpd_helo_restrictions=
> -o smtpd_sender_restrictions=
> -o smtpd_recipient_restrictions=
> -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
That was the final piece, Noel. Thx. Explicitly setting empty values for
those options for submission fixed whatever unintended spillover I was
experiencing.
Thanks to everyone's help here, I now have a slightly better understanding
of how these restrictions should work, and a much cleaner and easier to
understand list of recipient restrictions:
main.cf:
...
# SMTPD Restrictions
smtpd_helo_required = yes
disable_vrfy_command = yes
smtpd_recipient_restrictions =
reject_invalid_helo_hostname,
warn_if_reject reject_non_fqdn_helo_hostname,
reject_unknown_reverse_client_hostname,
warn_if_reject reject_unknown_helo_hostname,
check_reverse_client_hostname_access pcre:/etc/postfix/fqrdns.pcre,
check_helo_access hash:/etc/postfix/helo_access,
check_sender_access hash:/etc/postfix/sender_access,
reject_rbl_client zen.spamhaus.org,
reject_rhsbl_client dbl.spamhaus.org,
reject_rhsbl_sender dbl.spamhaus.org,
reject_rhsbl_helo dbl.spamhaus.org,
permit_dnswl_client list.dnswl.org=127.0.[0..255].[1..3],
permit
smtpd_relay_restrictions =
permit_mynetworks,
permit_sasl_authenticated,
reject_unauth_destination
smtpd_data_restrictions = reject_unauth_pipelining
...
master.cf:
...
submission inet n - n - - smtpd
-o smtpd_tls_security_level=encrypt
-o smtpd_sasl_auth_enable=yes
-o milter_macro_daemon_name=ORIGINATING
-o smtpd_client_restrictions=
-o smtpd_helo_restrictions=
-o smtpd_sender_restrictions=
-o smtpd_recipient_restrictions=
-o
smtpd_relay_restrictions=permit_mynetworks,permit_sasl_authenticated,reject
-o smtpd_data_restrictions=
-o smtpd_end_of_data_restrictions=
...
Thanks again!
SteveJ
