On 6 Jan 2006, at 13:58, Les Mikesell wrote:

I'm running an ancient network monitoring tool called 'spong' and
it's test for a working smtp service is to connect to the
port, send 'quit' and parse what it receives for a '220'.
With qpsmtpd as set up in the SMEserver beta, it is reporting
a failure:

450 Connecting host started transmitting before SMTP greeting

Is there an RFC requirement that the connecting host MUST
wait before sending anything?

Yes, see RFC 2821 section 4.3.1.

Matt.

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