debug: config: SpamAssassin failed to parse line, skipping: rewrite_subject 1 debug: config: SpamAssassin failed to parse line, skipping: subject_tag (SPAM) _HITS_ debug: config: SpamAssassin failed to parse line, skipping: use_terse_report 0
Suggestion: fix your syntax errors real quick by killing all of those lines. Those three are all obsolete. See the UPGRADE file for details on the rewrite_subject bit.
While they may not sound bad, I've seen parse failures cause other oddities in SA's behavior in the past.
debug: dns_available set to yes in config file, skipping test
Ok, you've hardcoded dns_available..
debug: RBL: success for 1 of 1 queries
Hmm, that looks not so good.... I get things more like:
debug: RBL: success for 14 of 14 queries
