Is it possible that this IP address is the external address and that Listserv and the mail relay are using a private address scheme. Mail won't handle going through Network Address Translation when other protocols will. Been there, done that, got the t-shirt. --- The Vista Content Protection specification could very well constitute the longest suicide note in history -- Peter Gutmann http://www.cs.auckland.ac.nz/~pgut001/pubs/vista_cost.html William Brown Web Development & Messaging Services Technology Services, WNYRIC, Erie 1 BOCES "LISTSERV site administrators' forum" <[log in to unmask]> wrote on 01/24/2007 12:41:53 PM: > I can: > > telnet://148.244.85.213:25 > > At 12:25 1/24/2007 Wednesday, Nathan Brindle wrote: > >Can you telnet to port 25 of 148.244.85.213 from the LISTSERV > machine, or not? > > > >If you can't, then the problem is outside of LISTSERV.