>>Hi, I have a new listserv list set up so that only subscribers can post. What header does the listserv try to match to the list -- is it From: or Sender: or something else? And what can a user do if this line comes out differently depending upon which machine they login to? Will they need to subscribe all their addresses with "nomail"? Thanks in advance! --Robyn owner of [log in to unmask]<< Listserv is going to look at the from address. If the address doesn't _exactly_ match the address of the subscriber on the list the post will be rejected. Even if the person is posting from a single site that that is both internet and bitnet but which hasn't been aliased, then they'll need two subscriptions with one set to no-mail. Eleftheria Maratos-Flier