It is also relays outbound email from the Exchange servers to the outside world. It is hosted on a VPS, and receives and processes external emails for 2 domains, then relays them to two Exchange servers, which are the final destination. I am using eFa as a mail gateway / "smart host". Yet each outbound email I send from Exchange to any external address is scanned and gets SPF_FAIL so gets blocked. Obviously restarted everything, reloaded postfix, rebooted machine, many times. Uncommented the line shortcircuit ALL_TRUSTED on Each IP on new line.Īdded External IP of Exchange Server to mynetworks string separated by space.Īdded External IP of Exchange server to trusted_networks and removed the comment #Īdded the line loadplugin Mail::SpamAssassin::Plugin::Shortcircuit, just before the ifplugin shortcircuit line Each IP on new line.Īdded External IP of Exchange server to PeerList string, separated by a spaceĪdded External IP of Exchange Server. I've missed something, and emails are still being scanned by SpamAssassin and still being blocked.Īdded External IP of Exchange server. I could add the IP of the Exchange server to the SPF record, but I'd like to avoid that if possible.
However, I now need to ensure outbound mail sent from Exchange through eFa is not checked for SPF (or anything else) so it doesn't get blocked. Recently I have made my SPF checking rules more aggressive by increasing SPF_FAIL to 7, as I find enforcing SPF checks almost totally eliminates the remaining spam, and in my case has not impacted any valid senders.
I have an Exchange 2016 server using eFa 4.0.4 hosted in a VPS as a smart host.
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