1. Deprecated directives. If a configuration includes the deprecated "rewrite_subject" directive, will spamd barf? Or ignore it? Or something else? What about spamassassin?
2. Spamd/spamc protocol. Will a 2.6 spamc communicate properly with a 3.0 spamd? What about a 3.0 spamc with a 2.6 spamd? If they're not compatible, what are the failure modes? 3. Deprecated command-line options. Will the options deprecated after 2.6 be ignored, or will they cause failures? What about options previously deprecated, like '-S'? Thank you. -- Ben Rosengart (212) 741-4400 x215 Unix gives 0.35 t/ha extra yield. Can you afford to ignore the Unix difference?