You may want to set up a "caching" Domain Name Server on your SMTP machine if you don't have one already. This was of help to us to eliminate latency. -----Original Message----- From: Bill Verity [mailto:[log in to unmask]] Sent: Tuesday, December 14, 1999 4:03 PM To: [log in to unmask] Subject: Can I speed up dialog with SMTP on AIX? It appears that listserv sends 100 addresses over to smtp and then waits a while. Here are two adjacent log entries: 14 Dec 1999 15:47:42 Mail posted via SMTP to [log in to unmask] 14 Dec 1999 15:48:04 Mail posted via SMTP to [log in to unmask] Can I speed this up at all? It looks like waits anywhere from 5 to 30 seconds between batches. I'm sure that is dependent on the mix of addresses, but I seems like a waste of time and I think is contributing to my backlog. -- Bill Verity - 814-865-4758 Fax: 814-863-7049 Postmaster & Listserv maintainer Center for Academic Computing, Penn State University At the office - on my Mac, of course ;-)