Sounds like a conf issue, we use IMF here at Microsoft and I have no problem getting mail from ExchangeList etc. Mark Fugatt Dedicated Supportability Engineer (Exchange) Microsoft Limited Desk: +44 (0)118 909 5630 Mobile: +44 (0)7966 858108 MSN IM: markfu@xxxxxxxxxxxxxxxxx Blog: http://blogs.technet.com/mfugatt Dedicated to proactively supporting Microsoft's enterprise Customers -----Original Message----- From: Andrew English [mailto:andrew@xxxxxxxxxxxxxxxxxxxxxx] Sent: 28 December 2005 04:39 To: [ExchangeList] Subject: [exchangelist] RE: IMF removal http://www.MSExchange.org/ No matter what I do emails to ExchangeList, ISAList, and SBSList are bouncing, not to mention some emails that I receive from people also are being rejected by IMF. I have tried adjusting the levels to let fewer positive hits in but they still bounce, this wasn't happening almost a month ago. Andrew