One of my users tried to reply to a message from a yahoo account and received the following error message The following recipient(s) could not be reached: Your mail system could not find a way to successfully communicate with the destination system. Please notify your administrator. Thanks in advance, Cory _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]