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Re: DATA, 221, and close (was: Re: RFC2821bis-01 Issue 8 number of message transactions per connection ?)

2007-03-29 10:01:16

On Thu, 29 Mar 2007, John C Klensin wrote:
On Thu, 29 March, 2007 08:29 -0700 Bart Schaefer wrote:

Recently I've encountered servers that respond with 221 rather than
250 at the end of the DATA phase (after <CRLF>.<CRLF>) and then
immediately close the connection.

There is at least one well-known server that behaves in this
general way (perhaps not this specifically).  It is generally
believed to be non-comformant in many other ways as well.

*boggle*

2007-03-19 16:48:51 +0000 1HTL0M-0005WH-14
        => ..... personal information .....
        R=dnslookup T=smtp S=4457
        H=nyt-smtp-01b.nytimes.com [199.181.175.119]
        C="221 Service closing transmission channel closing connection"

Also bizarre:

Trying 199.181.175.119...
Connected to nyt-smtp-01b.nytimes.com.
Escape character is '^]'.
220 SMTP Proxy Server Ready
ehlo cyan.csi.cam.ac.uk
250-nyt-smtp-01b.nytimes.com ESMTP Server Ready
250-SIZE 20971520
250-DSN
250-STARTTLS
250 TLS
help
250 +OK entry follows, ends in .
ehlo
tls
help
sendfrom
starttls
data
somlfrom
auth
quit
samlfrom
rcptto
rset
mailfrom
noop
helo
type
wlist
.


Tony.
-- 
f.a.n.finch  <dot(_at_)dotat(_dot_)at>  http://dotat.at/
GERMAN BIGHT: SOUTHEAST BACKING EAST 3 OR 4, OCCASIONALLY 5. SLIGHT OR
MODERATE. FAIR. MAINLY GOOD.

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