> >I greatly dislike Cisco PIX firewalls. They cause looping mail. > >http://www.lsoft.com/manuals/lsv-faq.stm#5.6 > Trust me....this was the first question I asked Cisco when it came to the review committee. We've got v.6 of their OS which appears to have the looping problem fixed. So far we haven't had any problems with LISTSERV actually sending or receiving mail. If anything, mail performance has picked up slightly due to the PIX filtering out unecessary traffic. What I'm trying to sort out now is what rules to allow traffic *into* the LISTSERV box over ports 25 & 53. It seems that all the inter-site traffic over the LISTSERV backbone communicates directly to our box, bypassing the mail server, and the PIX is dropping all of it. Consquently, I'm not seeing any LVMON contacts, X-SPAM jobs, or Spam alerts (is this such a bad thing? :). On top of that, my Network Admin wants to know why we have all this traffic from other LISTSERV sites. He's afraid that they're spam attacks on a massive scale. Chazzozz!! Michael Shannon Webmaster [log in to unmask] "Before you can grow old and wise you must first survive being young and stupid." - Ancient Proverb Note: Opinions expressed on this list are my own and do not reflect the views, opinions or position of my employer. If swallowed, seek medical advice.