Hello Dominic, The fact that you get that
Received-SPF: none headers means that spf-tools-perl gets called by exim4. What I suggest to debug this is to manually call spfquery.mail-spf-per with the relevant parameters (see the spfquery.mail-spf-perl manpage), and check if what kind of reply you get for your incoming outlook mail. The tool's help screen (spfquery.mail-spf-perl --help) has examples on how to invoke it. ** Changed in: exim4 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2056372 Title: Enabling SPF checks with CHECK_RCPT_SPF doesn't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/exim4/+bug/2056372/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs