Validating an SMTP server
gert at space.net
Mon Sep 7 21:03:22 CEST 2015
On Mon, Sep 07, 2015 at 02:56:50PM -0400, Jim Popovitch wrote:
> I think the CRLF vs CR debate is older than the Emacs vs Vi debate.
> :-) Others can probably speak better as to which to use, I'll stand
> on the sidelines and share with you Wietse's feelings: :-)
There is nothing to stand aside here - the RFC is more than clear.
> Sep 7 17:04:13 svr2 postfix/smtpd: improper command pipelining
> after HELO from ec2-52-7-167-73.compute-1.amazonaws.com[188.8.131.52]:
> HELO TEST\r\nQUIT\r\n
This has nothing to do with CR+NL (except that it shows up) but with,
as the error message says, "improper command pipelining" - you're not
supposed to send QUIT right away, but you're supposed to wait for the
reply to HELO, and only *then* send the next command (here: QUIT).
have you enabled IPv6 on something today...?
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