On 11/18/21 16:49, John Hardin wrote:
On Thu, 18 Nov 2021, Matt Corallo wrote:
I followed up on the exim-users list on this - Exim *did* verify the FcRDNS here and the above
header line is what it generates by default for FcRDNS. The RFC quote they responded with is at
[1]. A FcRDNS-failed received line is at [2].
I've modified that rule a bit to also look at the HELO and envelope From address to see if they are
from Shopify. Granted that's less reliable than rDNS, but it's probably Good Enough.
Note that the subject is, in hindsight, a bit of a misnomer. Obviously there's a ton of rules that
rely on FcRDNS, and in this case it seems like Exim's Received lines just do not match SA's current
detection, causing this and many other rules to fail.
Matt
