Wael MANAI:
> What do you mean "security software"? It's postfix which adds
> 250-PIPELINING...

You are mistaken.

The "security" software sends 

    250 whatever
    250-PIPELINING
    552 whatever

The 250-PIPELINING is NOT PART OF THE EHLO RESPONSE.

In RFC 5321, section "4.2.1. Reply Code Severities and Theory"

   The format for multiline replies requires that every line, except the
   last, begin with the reply code, followed immediately by a hyphen,
   "-" (also known as minus), followed by text.  The last line will
   begin with the reply code, followed immediately by <SP>, optionally
   some text, and <CRLF>.  As noted above, servers SHOULD send the <SP>
   if subsequent text is not sent, but clients MUST be prepared for it
   to be omitted.

        Wietse

Reply via email to