Chris, When did you test and what did you do?
> -----Original Message----- > From: Chris Scharff [SMTP:[EMAIL PROTECTED]] > Sent: Tuesday, December 04, 2001 9:01 AM > To: Exchange Discussions > Subject: RE: ORB UK - cross post - long > > Well, Dr. ummings doesn't seem to be a terribly polite fellow, but he's > technically accurate. > > Your mail server didn't reject the message at any point, it accepted it > for > delivery completely. (I tested) However, the mail was never delivered. > > Your mail server is not RFC compliant and/or is misconfigured. Fortunately > it's not Exchange, so we don't get to have yet another round of Microsoft > bashing. ;) > > Once your server has been reconfigured or replaced, you might want to > thank > the 'good' Dr. for all fo his help in teaching you about e-mail. > > -----Original Message----- > From: Schwartz, Jim > To: Exchange Discussions > Sent: 12/4/2001 7:59 AM > Subject: ORB UK - cross post - long > > I normally would not cross post this but it does relate to internet mail > as > a whole and therefore applies to Exchange 5.5 and 2000. > > I had the unfortunate situation recently where a configuration error > opened > us up to relaying. Once notified that this was the case, I quickly put a > stop to it. I then spent the next several hour/days having our address > re-tested by the various "blackhole" lists. Most quickly had my systems > re-tested and declared that I was not longer a relay. I did run into one > that has so far refused to remove me from the list. When I contacted the > person responsible for blocking us ([EMAIL PROTECTED]) I got > this > response: > > >Relay test 1 > >>> RSET > <<< 250 Rset state > >>> MAIL FROM:<[EMAIL PROTECTED]> > <<< 250 <[EMAIL PROTECTED]>... Sender ok > >>> RCPT TO:<[EMAIL PROTECTED]> > <<< 250 <[EMAIL PROTECTED] Recipient ok > > >Relay test result: host appeared to accept a message for relay. > > >Please don't waste my time with lies. You will not be removed until you > > >pass ALL tests. > > >-- > >Dr Paul Cummins - Internet Engineer | /"\ ASCII RIBBON > >Tel: 07021 117179 Fax: 07092 105150 + \ / CAMPAIGN > >Email: [EMAIL PROTECTED] | X AGAINST HTML MAIL > | / \ AND POSTINGS > > I then explained that the mail system would not reject mail until the > data > command was sent and got this response: > > >No, you have failed the relay test ORB UK applies. If you want to be > out > >of our list, you comply to our testing processes. You are an open > relay, > >Close it, or you stay listed. Rejecting on 'DATA' is not compliant with > > >RFC2822. > > Good Evening > > Now, of course, RFC 2822 says nothing about DATA verb or when to check > for > validity that I see. I feel that RFC2821 would be of interest when it > comes > to how to handle a message if you're a SMTP host: > > I won't post the full RFC but just highlight the relevant parts: > > Section 3.7 - If it declines to relay mail to a particular address for > policy reasons, a 550 response SHOULD be returned. However, the message > policy can't be checked until the entire message has been accepted since > the > mail host is not allowed, for any reason, to end the conversation with > the > exception of timeout. > > Section 4.1.1.3 RECIPIENT (RCPT) > Of course, since hosts are not required to relay mail at all, xyz.com > MAY > also reject the message entirely when the RCPT command is received, > using a > 550 code (since this is a "policy reason"). > > 6.1 Reliable Delivery and Replies by Email > When the receiver-SMTP accepts a piece of mail (by sending a > "250 > OK" message in response to DATA), it is accepting responsibility for > delivering or relaying the message. It must take this responsibility > seriously. It MUST NOT lose the message for frivolous reasons, such as > because the host later crashes or because of a predictable resource > shortage. > > Sorry for the extra long post, but Dr. Cummins has refused to continue > the > discussion with me and has block my mail address. I would like your > opinion > on this matter on who is correct. > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
