I'm looking for some advice on tunning up sendmail for delivery of Listserv HPO version. I have the following lists, and the time for each mailing: Any sendmail tips tricks or suggestions are welcome. Thanks, Dennis > HotdealSHTML (51,944 recipients) Start 12:19:23 Finish 15:55:36 Time: > 3hrs or so > > MBRHTDEALHTML (46,706 recipients) Start 15:55:38 Finish 18:51:32 Time: > 3 hours or so > > HOTDEALSTXT (181,194 recipients) Start 18:51:36 Finish 07:19:50 Time: > 13 hours or so > > MBRHTDEALSTXT(21,714 recipients) Start 7:19:55 Finish 8:26:55 Time: > 1 Hour or so > > Total: 20 hours for a mailing. >