Here's an interesting "bounce" message from LISTSERV ... +++ | 1 10/09 10/09 User Name <[log in to unmask]> | Last error: 553 <[log in to unmask]>... Mail from 142.104.5.230 | refused; see http://www.dorkslayers.com/orbs/ +++ Note that the VM/CMS server which hosts the list I own is '142.104.5.230'. Evidently, 'DorkSlayers' tests for "open" SMTP-servers, such as are found in the current TCP/IP software for VM/CMS, and publishes that information is some sort of "black-list", and then refuses to accept all E-mail originating from such a host. It makes sense, if you're an ISP trying to stop spam, and that's more important than your customer's desire to access a mailing-list served by that host. It doesn't bother me to be "blocked" by one ISP; however, if some person tries to subscribe to a LISTSERV-controlled mailing-list which you own, you may get a similar "bounce" message. Such a person will have to switch ISPs, to find one which does not use the 'DorkSlayers' system. P.S. DorkSlayers seem to be geographically "near" to me, but their telephone-numbers are totally bogus ... Dorkslayers International (DORKSLAYERS-DOM) 1430 - 405 Granville St. Vancouver, BC V6C 1T2 CA Domain Name: DORKSLAYERS.COM Administrative, Billing, Technical, Zone Contact: Sword, Dorkslayers (DS6585) [log in to unmask] +1 (604) 555-5555 (FAX) +1 (604) 555-5555 Record last updated on 02-Oct-98. Record created on 06-Mar-97. Vacuum 6 Closets, 1 Terrace Too.