Looks like the remote server is starting the smtp connection out of order: 503_MAIL_first
Maybe it starts with a "rcpt to" for some reason. Seeing its a Microsoft node: * Outlook client without authentication? * Is it always the same server failing? * only one sender affected by this? Rather strange indeed - maybe something trivial as packet loss? Cheers, Sebastian On 29.03.2013, at 18:35, Eric Shubert <e...@shubes.net> wrote: > On 03/29/2013 10:26 AM, Aleksander Podsiadły wrote: >> Dnia 2013-03-29, pią o godzinie 17:38 +0530, Amit pisze: >>> reason: 503_MAIL_first_(#5.5.1) >> >> IMHO it's the greylist, try again. > > You can try again, but I don't think that's it. DENIED_OTHER is a rejection > outside the scope of spamdyke, which is what does graylisting. If it were > graylisting, you'd see DENIED_GRAYLISTED in the log. > > -- > -Eric 'shubes' > > --------------------------------------------------------------------- > To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com > For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com > --------------------------------------------------------------------- To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com