in an experimenting attempt to block yhoo signature urls from showing, i put in 2 rules
which, however, also blocked actual valid content urls. but toggling Enabled off did not remove the effect, nor did placing a ! in front of them, nor did deleting them entirely. not even on a Tb restart, not even on rebuilding the .msf index file. only disabling ABP removes the block, otherwise the (imap) emails are permanently broken it seems. ouch.