We run EWS 5.1 appliances with Patch 5 installed, and SMTP detection summary shows 0 PUPs from the beginning. Earlier we used to run SIG 4.5 and some 4-8 PUPs were always detected daily in SMTP mails.
KB66410 describes this issue and says that Patch 4 resolved this, but it seems not even Patch 5.
To decide this is an isolated problem of ours or a more widespread, can anyone reply who are on the same patch level and PUP counter do show some numbers?
Or maybe a later patch will resolve this?
Moved to EWS community.