Um, no. Exchange does an MX lookup for tajen.edu.tw, and gets 192.192.192.x back, and then sees that its pointing to itself. Message is then NDRed
-------------------------------------------------------------- Roger D. Seielstad - MCSE Sr. Systems Administrator Inovis Inc. > -----Original Message----- > From: Michel Erdmann [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 04, 2003 11:41 AM > To: Exchange Discussions > Subject: RE: Internet mail taking an obscure extra step? > > > I think he could send mail to the tajen.edu.tw domain, as > long as his mail server IP address doesn't match the > tajen.edu.tw MX IP itself. He's using WINS only and uses > external DNS servers. I see options for keeping the address > AND mailing tajen.edu.tw > > ;-) > > Seriously: I would change IP ranges ASAP. > > Michel > > > -----Original Message----- > > From: Ed Crowley [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, March 04, 2003 5:35 PM > > To: Exchange Discussions > > Subject: RE: Internet mail taking an obscure extra step? > > > > > > Yes, or you'll never be able to send mail to tajen.edu.tw! > > > > Ed Crowley MCSE+Internet MVP > > Freelance E-Mail Philosopher > > Protecting the world from PSTs and Bricked Backups!T > > > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Niki > > Blowfield > > - Exchange > > Sent: Tuesday, March 04, 2003 8:27 AM > > To: Exchange Discussions > > Subject: RE: Internet mail taking an obscure extra step? > > > > > > So I guess the best thing to do is, as quick as possible, > > move over to a 192.168 address range > > > > > > > > -----Original Message----- > > From: Michel Erdmann [mailto:[EMAIL PROTECTED] > > Sent: 04 March 2003 16:25 > > To: Exchange Discussions > > Subject: RE: Internet mail taking an obscure extra step? > > > > > > 192.192.192.0 isn't a private range > > > > RFC1918 states: > > > > The Internet Assigned Numbers Authority (IANA) has reserved the > > following three blocks of the IP address space for private > > internets: > > > > 10.0.0.0 - 10.255.255.255 (10/8 prefix) > > 172.16.0.0 - 172.31.255.255 (172.16/12 prefix) > > 192.168.0.0 - 192.168.255.255 (192.168/16 prefix) > > > > I'm wondering why the remote servers doesn't block your mail, > > because basically you are using them to relay. Must be > > because the remote mail server sees your mail server as > > 'local'.... (some quick relay testing for the tajen.edu.tw > > domain show correctly configured relay > > restrictions) > > > > Michel > > > > > -----Original Message----- > > > From: Niki Blowfield - Exchange > > [mailto:[EMAIL PROTECTED] > > > Sent: Tuesday, March 04, 2003 5:07 PM > > > To: Exchange Discussions > > > Subject: RE: Internet mail taking an obscure extra step? > > > > > > > > > I think I'm on to something > > > > > > The network here is a privately addressed LAN, > > > mailgate.partition.co.uk resolves to the firewall, which > > forwards port > > > > > 25 to the exchange server > > > > > > The LAN network address is 192.192.192.0/255.255.255.0 set > > up before I > > > > > arrived, I was a good engineer and gave the other subnets > > 192.168.x.x > > > ranges > > > :) > > > > > > 192.192.192.0 isnt a private range is it? > > > > > > When I put one of our server addresses into an IPWHOIS > search, this > > > tajen.edu.tw domain comes up as the owner > > > > > > I guess I need to change the network address range here? Yuck > > > > > > Anything else or a possible workaround? We are WINS only, > > DNS servers > > > for internet access are at our ISP > > > > > > thanks > > > > > > > > > -----Original Message----- > > > From: Niki Blowfield - Exchange > > > Sent: 04 March 2003 15:42 > > > To: Exchange Discussions > > > Subject: RE: Internet mail taking an obscure extra step? > > > > > > > > > Roger > > > > > > Sorry about that, just sent another email and generated the > > following, > > > > > you Can see the erroneuos .edu.tw domain here > > > > > > =================================== > > > > > > This is the Outlook Options as viewed by the recipient > > > > > > =================================== > > > > > > Return-Path: <[EMAIL PROTECTED]> > > > Delivered-To: [EMAIL PROTECTED] > > > Received: from eratosthenes by eratosthenes with > qmail-deliver for > > > <[EMAIL PROTECTED]>; 4 Mar 2003 15:33:40 -0000 > > > X-Apparently-To: [EMAIL PROTECTED] > > > X-Zen-Test-Header-Please-Ignore: [EMAIL PROTECTED] > > > X-Envelope-To: [EMAIL PROTECTED] > > > X-Envelope-From: [EMAIL PROTECTED] > > > X-Zen-Virusscan-Flag: zen12940 -> flag is unset > > > Received: (qmail 17356 invoked from network); 4 Mar 2003 15:33:40 > > > -0000 > > > Received: from parmenides.zen.co.uk (212.23.8.69) > > > by eratosthenes.zen.co.uk with QMTP; 4 Mar 2003 15:33:40 -0000 > > > Received: (qmail 10266 invoked from network); 4 Mar 2003 > > > 15:33:40 -0000 > > > Received: from mailgate.partition.co.uk (HELO webserv.local) > > > (62.49.146.170) > > > by parmenides.zen.co.uk with SMTP; 4 Mar 2003 15:33:40 -0000 > > > X-Zen-Trace: 62.49.146.170 > > > Received: by medmgmt-15.tajen.edu.tw with Internet Mail Service > > > (5.5.2650.21) > > > id <G259C6KT>; Tue, 4 Mar 2003 15:34:41 -0000 > > > Message-ID: > > > <[EMAIL PROTECTED]> > > > From: Niki Blowfield <[EMAIL PROTECTED]> > > > To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]> > > > Subject: Test Message > > > Date: Tue, 4 Mar 2003 15:34:40 -0000 > > > MIME-Version: 1.0 > > > X-Mailer: Internet Mail Service (5.5.2650.21) > > > Content-Type: multipart/alternative; > > > boundary="----_=_NextPart_001_01C2E263.92B511D8" > > > > > > =================================== > > > > > > And this is logged by the IMS in event viewer on the > sending server > > > > > > =================================== > > > > > > Delivery of message > > > <[EMAIL PROTECTED] > > > w> from <[EMAIL PROTECTED]> in temporary file G259C6KT was > > > attempted to host(s) 212.23.8.69 (for zen.co.uk) with 1 > recipients > > > delivered and 0 undliverable > > > > > > > > > > > > -----Original Message----- > > > From: Roger Seielstad [mailto:[EMAIL PROTECTED] > > > Sent: 04 March 2003 15:26 > > > To: Exchange Discussions > > > Subject: RE: Internet mail taking an obscure extra step? > > > > > > > > > Post one that hasn't been modified. > > > > > > -------------------------------------------------------------- > > > Roger D. Seielstad - MCSE > > > Sr. Systems Administrator > > > Inovis Inc. > > > > > > > > > > -----Original Message----- > > > > From: Niki Blowfield - Exchange > > > [mailto:[EMAIL PROTECTED] > > > > Sent: Tuesday, March 04, 2003 9:59 AM > > > > To: Exchange Discussions > > > > Subject: Internet mail taking an obscure extra step? > > > > > > > > > > > > Hi > > > > > > > > Been asked to look at this for someone > > > > > > > > Server is Exch 5.5 SP3 running on NT4 SP6a > > > > > > > > Upon examining logs routinely, it seems outbound > internet mail is > > > > going via another IMS at another company > > > > > > > > The Edu.TW domain is nothing to do with us, and mail should > > > go direct > > > > from ourdomain.co.uk to recipientsdomain.com > > > > > > > > I wont profess to being particularly well versed at > reading mail > > > > headers, but could someone suggest what the hell is > going on here? > > > > > > > > Thanks; > > > > > > > > =================================== > > > > > > > > This is the Outlook Options as viewed by the recipient > > > > > > > > =================================== > > > > > > > > Return-Path: <[EMAIL PROTECTED]> > > > > Delivered-To: [EMAIL PROTECTED] > > > > Received: from ourexchangserver.local (mailgate.ourdomain.co.uk > > > > [111.111.111.111]) > > > > by mail.recipienstdomain.com (server) with ESMTP id > > > 48A0B92FF2 for > > > > <[EMAIL PROTECTED]>; Tue, 4 Mar 2003 > 12:00:39 +0000 > > > > (GMT) > > > > Received: by someunknownserver.edu.tw with Internet Mail Service > > > > (5.5.2650.21) > > > > id <G259C62B>; Tue, 4 Mar 2003 12:01:49 -0000 > > > > Message-ID: > > > > > <[EMAIL PROTECTED]> > > > > From: Senders Name <[EMAIL PROTECTED]> > > > > To: "'[EMAIL PROTECTED]'" > > > > <[EMAIL PROTECTED]> > > > > Subject: test > > > > Date: Tue, 4 Mar 2003 12:01:47 -0000 > > > > MIME-Version: 1.0 > > > > X-Mailer: Internet Mail Service (5.5.2650.21) > > > > Content-Type: multipart/alternative; > > > > boundary="----_=_NextPart_001_01C2E245.D5A38C22" > > > > X-UIDL: 2HK!!/L!"!,pc!!ek\!! > > > > > > > > =================================== > > > > > > > > And this is logged by the IMS in event viewer on the > > sending server > > > > > > > > =================================== > > > > > > > > Delivery of message > > > > > > > > <[EMAIL PROTECTED] > > > > tw> from <[EMAIL PROTECTED]> in temporary file XXXXXXX > > > > was attempted to host(s) 111.111.111.111 (for > > > > recipientsdomain.com) with 1 recipients delivered and 0 > > > undeliverable > > > > > > > > > _________________________________________________________________ > > > > 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] > > > > > > _________________________________________________________________ > > > 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] > > > > > > > _________________________________________________________________ > > 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] > > > > > > _________________________________________________________________ > > 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] > _________________________________________________________________ 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]
