We have a UNIX network connected to our VM system and are trying to access listserv functions from it. If we send a note from the UNIX network with a command like 'GET LISTSERV MEMO', we get different results depending on how the From: address is constructed. If the From: address is of the form [log in to unmask], the process works perfectly. Both an information note giving resource usage and the memo are sent by LISTSERV and correctly received by UNIX. If the From: address is of the form 'FTK01%DOH1D.DOH1E@ALBNYDH2' only the information note showing resource consumption is sent by LISTSERV and received by UNIX. The console log from LISTSERV shows that the request from the % address only generates a 'Sent information mail to [log in to unmask] On the other hand, the request from the address without the percent sign generates a 'Sent mailfile to [log in to unmask] as well as a 'Sent information mail to [log in to unmask] Any ideas? We are at LISTSERV 6.1E.