Ralf Hildebrandt:
> * kshitij mali <foreplay...@gmail.com>:
> > Hi ALL,
> >
> > I am getting error to my postfix server while delivery email to certain
> > outbound domain
> >
> > please find the error in the mailllog below
> >
> > ==============================================================================
> > May 12 00:34:25 D1OKH680RL postfix/qmgr[2670]: A024E98291:
> > from=<A#1...@aplb.apl.com>, size=643762, nrcpt=2 (queue active)
> > May 12 00:34:27 D1OKH680RL postfix/smtp[25218]: A024E98291: lost connection
> > with BBBB.YAKJIN.COM[222.107.108.250] while sending MAIL FROM
>
> MAIL FROM:<A#1...@aplb.apl.com>
> 553 [Sniper] Sender domain MX record does not exist.
> Connection closed by foreign host.
>
> BBBB.YAKJIN.COM is using the notorious Spamsniper by JiranSoft,a nd it
> seems that this piece of junk requires an MX entry for aplb.apl.com
> (an A record does not suffice).
A fine example of technology, indeed.
It announces support for ESMTP PIPELINING, and when the SMTP client
pipelines the commands per the RFC, the server loses the reply to
the SMTP client.
Wietse
08:06:41.266246 222.107.108.250.25 > 168.100.189.2.2411: P 1:50(49) ack 1 win
5840 (DF)
220 ESMTP Spamsniper by JiranSoft 3.3.3.0071210<CR><LF>
08:06:41.266383 168.100.189.2.2411 > 222.107.108.250.25: P 1:27(26) ack 50 win
17520 (DF)
EHLO spike.porcupine.org<CR><LF>
08:06:41.487747 222.107.108.250.25 > 168.100.189.2.2411: . ack 27 win 5840 (DF)
08:06:41.495506 222.107.108.250.25 > 168.100.189.2.2411: P 50:167(117) ack 27
win 5840 (DF)
250-Spamsniper by JiranSoft 3.3.3.0071210<CR><LF>
250-AUTH LOGIN PLAIN<CR><LF>
250-AUTH=LOGIN PLAIN<CR><LF>
250-PIPELINING<CR><LF>
250 8BITMIME<CR><LF>
08:06:41.495654 168.100.189.2.2411 > 222.107.108.250.25: P 27:110(83) ack 167
win 17520 (DF)
MAIL FROM:<aaa...@aaaa.porcupine.org><CR><LF>
RCPT TO:<bbbbbb...@bbbb.yakjin.com><CR><LF>
DATA<CR><LF>
08:06:41.760739 222.107.108.250.25 > 168.100.189.2.2411: . ack 110 win 5840 (DF)
08:06:42.037453 222.107.108.250.25 > 168.100.189.2.2411: F 167:167(0) ack 110 wi
n 5840 (DF)
08:06:42.037471 168.100.189.2.2411 > 222.107.108.250.25: . ack 168 win 17520
(DF)
08:06:42.073458 168.100.189.2.2411 > 222.107.108.250.25: F 110:110(0) ack 168
win 17520 (DF)
08:06:42.291474 222.107.108.250.25 > 168.100.189.2.2411: . ack 111 win 5840
