Hi all- I've been expereincing a lot of ugly errors lately: many copies of the smae emial arriving, some remte hosts can't email us at all (yes, MX records are ok). I've begun to watch everytihng that happens w/ recordio. In my log files, I'm beginning to see a distressing number of errors like the one listed below: a remote server connects, announces MAIL, RCPT TO, and DATA fine, then the connection is dropped and a '451 error' code is logged. In the example below, this happened only 22 seconds after the previous entry. This is pretty representative of what's happening. As I understand it, 451 is an internal error while processing a message, and the default timeout for smtp sessions (timeoutsmtpd) is 1200 seconds. Has anyone seen anything like this, and if so, could it be a configuration error of some sort? Or does it indicate either hardware or network failure? Thanks- Dan Mar 11 19:38:23 mx1 smtpd: 984357503.141262 13096 > 220 mx1.ny.otec.com ESMTP? Mar 11 19:38:23 mx1 smtpd: 984357503.216899 13096 < HELO femail9.sdc1.sfba.home.com? Mar 11 19:38:23 mx1 smtpd: 984357503.218213 13096 > 250 mx1.ny.otec.com? Mar 11 19:38:23 mx1 smtpd: 984357503.414713 13096 < MAIL FROM:<[EMAIL PROTECTED]>? Mar 11 19:38:23 mx1 smtpd: 984357503.416019 13096 > 250 ok? Mar 11 19:38:23 mx1 smtpd: 984357503.490315 13096 < RCPT TO:<[EMAIL PROTECTED]>? Mar 11 19:38:23 mx1 smtpd: 984357503.491628 13096 > 250 ok? Mar 11 19:38:23 mx1 smtpd: 984357503.566791 13096 < DATA? Mar 11 19:38:23 mx1 smtpd: 984357503.576821 13096 > 354 go ahead? Mar 11 19:38:45 mx1 smtpd: 984357525.672773 12927 > 451 timeout (#4.4.2)? Mar 11 19:38:45 mx1 smtpd: 984357525.673019 12927 > [EOF]