Thanks for doing some testing around the quotes, was that with using /usr/bin/bash?
Also the lead I had was the changelog entry from upstream: JH/24 The ${run} expansion item now expands its command string elements after splitting. Previously it was before; the new ordering makes handling zero-length arguments simpler. The old ordering can be obtained by appending a new option "preexpand", after a comma, to the "run". So I tried using ,preexpand to hopefully get it to work and unfortunately just see a parsing error now, similar to [0]. [0] - https://www.mail-archive.com/search?l=exim- us...@exim.org&q=subject:%22%5C%5Bexim%5C%5D+Failed+to+expand+ACL+string%22&o=newest&f=1 -- 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