I have a subscriber whose From: address is as follows when he writes to me directly. I'm able to respond to this address. Lars Nohling <"LNohling_+@_BSSI_+(Lars_Nohling+)%REMSBSSI"@mcimail.com> When he posts to the list LISTSERV seems to transmute his address into Lars Nohling <LNohling_+@"_BSSI_+(LARS_NOHLING+)[log in to unmask]"> It appears that LISTSERV is attaching significance to the first "@" in the address and moving the quotation marks. MAILER 2.08 gets a parsing error with this address. Running LISTSERV 1.7a with fixes 17A-001O, 17A-002O, and 17A-003O installed. Glenn A. Malling (NETMAN@SUVM) or [log in to unmask] Computing & Network Services (315)-443-4111 Machinery Hall Syracuse University Syracuse, New York 13244