How about using the Attachments= keyword to only accept certain types of attachments? Francoise On 10 May 2007 at 9:08, Bill Brown wrote: > The spam filtering/mail security system we use for 70 school districts in > Western NY blocks attachments with extensions that Microsot has deemed to > be unsafe (See http://support.microsoft.com/kb/291369/en-us ), which > includes the extension .URL.. A teacher got dropped form a State Ed > listserv becuase we rejected (554 5.7.1 Attachments with file extension > url are not accepted Message rejected by spam filter) the message at the > SMTP level. > > Is there any advice I can pass on to the list owner on how to block that, > and other unsafe extensions, to prevent future problems and make the list > safer for all their subscribers? > > > --- > In the time it took to read this a Windows exploit was discovered. > > > William Brown > Web Development & Messaging Services > Technology Services, WNYRIC, Erie 1 BOCES > (716)821-7285 -- Francoise Becker There is only one LISTSERV(R) -- the product that launched the email list communication industry in 1986. To discover the story behind LISTSERV, visit: http://www.lsoft.com/corporate/20anniversary.asp