piclist-bounces@MIT.EDU My ISP does spam filtering based on source email address. Normally my PIClist mail comes in fine from piclist@mit.edu. But sometime it comes in from piclist-bounces@mit.edu and has the original senders email address in as well. Is there a way to diagnose why emails from from piclist-bounces? I've addess that email addres to my address book to satisfy the spam filter but it doesn't work. %-) That's an ISP problem not a PIClist problem but I hoped to resolve it by determining why the email bounces. thanks chuckc -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist