Most people I know are not blocking .dat files, as they are basically text files. In fact, I exclude them from SAV system scans, again, as they are text files. John Tolmachoff MCSE CSSA Engineer/Consultant eServices For You www.eservicesforyou.com -----Original Message----- From: Chris Wall [mailto:Chris.Wall@xxxxxxxxxxxxxxxxxxx] Sent: Friday, September 05, 2003 8:45 AM To: [ExchangeList] Subject: [exchangelist] Attachment blocking http://www.MSExchange.org/ Hello all, Running Exchange 5.5 I am running GFI Mail Security and have all .dat files blocked. I am experiencing an issue where valid e-mails from other organizations are being blocked due to winmail.dat files being attached to their messages. It is not realistic for me to send them directions to turn off TNEF to prevent the winmail.dat attachment. Do most of you block .dat files? If so, how do you overcome this issue in your organization? I can not whitelist a specific attachment through GFI so I am stuck. Any ideas appreciated. Thanks, Chris Wall ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: johnlist@xxxxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')