yesterday I upgraded from 4.5.4 to 4.5.7. Many of our users
are now complaining about a lot of false positive Spam (which I never had before with Zimbra).
Even mails, originating from my zimbra system are tagged as Spam. One of our users sent me a mail with X-Spam-Score: 9.266 and X-Spam-Status indicates: FH_HOST_EQ_DYNAMICIP=4.058 (among others).
The users client had a dynamic IP address when sending the mail, but he was authenticated (SMTPAUTH)....
Is there some known problem with spam tagging in 4.5.7?