my guess: null RFC821 fields (they are RFC compliant) reaching a non-compliant MTA at work or your home ISP. /Pete At 14:03 09/23/2003 Tuesday, Bollinger, Eric W (BearingPoint) wrote: >Turns out that I do get the confirm/welcome from my university account, but >not from work or yahoo. > >This is good in the sense that the confirm works, but very bad that listserv >does not cooperative with work or yahoo accounts.