moderator: has anything on this list changed?

Hi, For over a year now, I've been subscribed to this list through my main email account. My ISP has anti-spam stuff on the server which prepends the subject of anything it considers spam with 'SPAM: '. As of 4am this morning (Melb, Australia), EVERY message to this list has been flagged as spam. Not good. It permanently screws up the subject lines of all emails, and becomes a pain in the ass for threading, replying, forwarding, etc. Whilst I'm currently grilling the ISP to see if anything has changed at their end, I'm also wondering if anything has changed on the lists.php.net mail server, or DNS, or anything like that in the last 12 hours which would cause such a problem. FWIW, I haven't noticed any other lists or emails being wrongly flagged, just this one. TIA, Justin