"LISTSERV site administrators' forum" <[log in to unmask]> wrote on 04/12/2006 12:50:19 PM: > There is something very strange going on with our Listserv ... > > Since about two weeks ago, mail delivery has gotten extremeley slow. Now we > are getting mail in "spurts." Mail is sometimes held for several hours > until a collection of it arrives all at once, with the same "sent" time on > all in that batch. > > LSoft Tech Support had us check out several things but we have been unable > to discover the cause. We are on a leased server and our provider doesn't > know what it is, either. Listserv logs show all leaving the server within a > couple of minutes so it does not look like a Listserv problem. It seems it > is being held somewhere and then something triggers it to be sent. What's in front of the listserv box? Is there a spam filter or other mail relay in the stream that may be a bottle neck? Just for giggles, you could telnet right to the listserv box and forge a message to a test list and see if there is any delay. That would help prove it's not listserv. Since the changes about 2 weeks ago, what changed then? DOn't accept "Nothing" for an answer.