Dear all, I am aware that this is most probably a silly oversight on my part but I would really appreciate gentle guidance to the right direction to overcome this impasse. I truly appreciate your time.
I rented a VPS, installed OpenBSD 6.7 and set up a mail server as described here <https://poolp.org/posts/2019-09-14/setting-up-a-mail-server-with-opensmtpd-dovecot-and-rspamd/>. I double and triple checked all the settings, including MX records, reverse DNS, etc. and confirmed everything is resolving. Here is my redacted smtpd.conf: -------- pki mail.name.com cert "/etc/ssl/mail.name.com.fullchain.pem" pki mail.name.com key "/etc/ssl/private/mail.name.com.key" filter check_dyndns phase connect match rdns regex { '.*\.dyn\..*', '.*\.dsl\..*' } junk filter check_rdns phase connect match !rdns junk filter check_fcrdns phase connect match !fcrdns junk filter senderscore \ proc-exec "filter-senderscore -junkBelow 70 -slowFactor 5000" filter rspamd proc-exec "filter-rspamd" table aliases file:/etc/mail/aliases listen on all tls pki mail.kumru.club \ filter { check_dyndns, check_rdns, check_fcrdns, senderscore, rspamd } listen on all port submission tls-require pki mail.name.com auth filter rspamd action "local_mail" maildir junk alias <aliases> action "outbound" relay helo mail.name.com match from any for domain "name.com" action "local_mail" match for local action "local_mail" match from any auth for any action "outbound" match for any action "outbound" ----------------------- There is no problem in sending email from within the VPS. Unfortunately every time I try to send an email from my local computer and try to use the smtpd server in VPS as a relay, I get a "550 Invalid recipient: < recipi...@gmail.com>"error. Here is the output of `doas smtpd -d -T lookup` (redacted): ------------------------ info: OpenSMTPD 6.7.0 starting 24875097a9b2d457 smtp connected address=111.11.1.111 host= 111-11-1-111.client.something.com lookup: match "111-11-1-111.client.something.com" as REGEX in table static:<dynamic:0> -> false 24875097a9b2d457 smtp tls ciphers=TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 lookup: match "111.11.1.111" as NETADDR in table static:<anyhost> -> true lookup: match "gmail.com" as DOMAIN in table static:<dynamic:1> -> false lookup: match "111.11.1.111" as NETADDR in table static:<localhost> -> false lookup: match "111.11.1.111" as NETADDR in table static:<anyhost> -> true lookup: match "gmail.com" as DOMAIN in table static:<anydestination> -> true lookup: match "111.11.1.111" as NETADDR in table static:<localhost> -> false 24875097a9b2d457 smtp failed-command command="RCPT TO:<recipi...@gmail.com>" result="550 Invalid recipient: <recipi...@gmail.com>" 24875097a9b2d457 smtp disconnected reason=disconnect ------------------------ It appears to my untrained and careless eyes that the sender/recipient combination fits to the "outbound" ruleset and therefore should be relayed to gmail's smtp; however, it is clearly not the case. I will truly appreciate any pointers to solve this issue. Regards, Hakan Duran
