amavisd-new: .docx often incorrectly detected as BANNED: .exe, .exe-ms, [trash]/0000.dat
Amavis seems to block some Word documents. I experienced those problems with signed documents. In the logfiles amavis writes:
Anti-Spam
Exclude DNS-Blacklist AHBL from spamassassin
DNS-Blacklist AHBL recently stopped their services. Since that I had many problems with our spamfilters. They are still using this blacklist and give all the mails a higher score because AHBL doesn't exist anymore.
The following entry in /etc/spamassassin/local.cf solvesthe problem(quick fix) :
score DNS_FROM_AHBL_RHSBL 0