Anyone know why [log in to unmask] is having so many problems lately? Last error: Mailer mx-rr.home.com said: "550 5.7.1 <[log in to unmask]>... Relaying denied" As list owner for several lists (on different LISTSERV installations in different parts of the country), I'm receiving quite a few delivery error reports like the one above, for a number of [log in to unmask] subscribers on those several lists. Peter R