I’m facing the same issues here, where all mails are forwarded to Gmail-accounts (or well, almost all).
Did you manage to find a proper way of handling this?
In the following thread, there’s a few hints:
diekuh Rspamd probably tries to sign the domain as it thinks it is internal.
All useful filtering and neural/bayes learning is not applied when you terminate the connection pre-mailcow and do not pass the connectors IP. I don’t recommend it at all.
Remember to set the gw as forwarding host and don’t be mad when filtering is not as good.
jzt308 Ok so if I understand you correctly the most probable reason this message shows is because of the mailrelay on the firewall. So the reccomended setup is to just foreward the smtp connection directly to the email (mailcow) server and let it do all the antivirus and spam checks.
thnx for the help.
But I’m not really sure on how to fix this on my instance.
Maybe we could ask @jzt308 😃 ?
