I don't know if most LISTSERV hosts are configured like ours, BUT list distributions for AOL.COM users are sent via the LISTSERV backbone site AOL.COM goes to PLUM.EASE.LSOFT.COM (766) which is accessed via the following routing (when generated from LISTS.PSU.EDU): PLUM.EASE.LSOFT.COM: CUNYVM PLUM.EASE.LSOFT.COM CUNYVM (bitnet) appears in our MAILER tables as: * CUNYVM.BITNET is routed as follows: * <.BITNET> PSUVM SMTP BSMTP NETDATA @INTERBIT.CREN.NET An MX lookup of the INTERBIT.CREN.NET points to its own A record. Looking up the A record and then doing a REVERSE lookup reveals: 99.129.112.128.in-addr.arpa. 11077 IN PTR pucc.Princeton.EDU. which means that PSU list mail for AOL.COM subscribers goes from Penn State to Princeton (via the Internet) to CUNYVM via the bitnet (and any possible intermediate RSCS links PUCC --> PUNFSV2 --> CUNYVMV2 --> CUNYVM), then hop back on to the Internet and go to PLUM.EASE.LSOFT.COM's LISTSERV, which then does an MX lookup on AOL.COM and goes to any one of the EIGHT MX hosts for AOL.COM. Though I was able to do a TRACEROUTE to several of those MX hosts, I was unable to get the SMTP port to respond (but I did not try all eight). Having said all that, I wonder if that is how AOL subscribers REALLY receive (when to do) list mail? -- mailto:[log in to unmask] Tel: +1 814 863 1843 31 Shields Bldg; University Park, PA 16802-1202 USA Powered by: LISTSERV, Eudora, Netscape, mIRC, FreeAgent