> On May 6, 2016, at 6:04 AM, Todd Herr <[email protected]> wrote: > > > On Thu, May 5, 2016 at 9:00 PM, Steve Atkins <[email protected]> wrote: > I've seen them do that when they get out of sequence. Are you doing the > transaction above by hand (and with a real HELO and so on), or is it from MTA > logs? > > By hand, real HELO and MAIL FROM, followed by RSET or QUIT, but AIUI, RSET > or QUIT can be issued at any time, yes?
Yes they can, but I've seen PIXes inexplicably get into a state where they reject everything. Also, they can't handle (with at least some firmware revisions) SMTP commands broken across TCP packet boundaries. If you're interacting with them using a character-at-a-time tool rather than a line-at-a-time tool then that would cause all commands not to be recognized, unless you type fast enough to beat Nagle. Telnet (at least on unixy platforms) defaults to line-at-a-time, I think. Cheers, Steve _______________________________________________ mailop mailing list [email protected] https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
