Hi
I do not greylist servers with correct spf record. With UPC i think the main problem is the missing NDR.
We also do not greylist if the SPF record matches. We do not greylist IP's listed in the DNSWL.org or SWINOG Whitelist either.
But none of this was true for the new 'NL' ranges used by upcmail.net. The ranges in AT were already whitelisted, thus not causing that problem.
So far no progress with the ticket I opened @ UPC.
-BenoƮt Panizzon-