iis smtp nntp: 21 NOOP'S = 421 error Win2k -- iis smtp nntp

21 NOOP'S = 421 error Win2k

Robert Simpson
6/24/2004 9:24:00 AM

iis smtp nntp: Someone want to explain why NOOP's are tagged as errors in the ESMTP
service?

220 master Microsoft ESMTP MAIL Service, Version: 5.0.2195.6713 ready at
Thu, 24 Jun 2004 09:25:30 -0700
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
NOOP
250 2.0.0 OK
421 Too many errors on this connection---closing

Re: 21 NOOP'S = 421 error Win2k

Robert Simpson
6/24/2004 9:42:03 AM

I can understand if one wants to prevent one's mailserver from a DoS by
limiting the NOOP's but you really should reset the counter after a
legitimate e-mail is processed.

Robert