Almost. If eiter site goes down (and "goes down" means that the server with the MX record doesn't respond on port 25), then all mail will route to the other. if both are down, mail will queu and eventually (normally 2 days for most defaults) expire.
But when both are up....you will see traffic on both. Not every MTA obeys MX record weight, and often spammers won't. You'll probably see most of your trafic go to the primary record, though. --James On 7/16/08, Liby Philip Mathew <[EMAIL PROTECTED]> wrote: > Thank you very much, Wells. > I forgot to mention that the mail domain is same for both the countries. In > this case, I suppose the following will happen: > Country A hosts the priority 10 MX record > Country B hosts the priority 20 MX record > > So all the mails for both countries comes to Country A and mails for country > B is routed internally thru the VPN to country B. > If Country A MX server goes down all the mails will be routed to Country B > with 20 priority MX and the mails for country A and Country B will be > received at Country B and the mails for country A will routed from Country B > to A internally. > Am I right in the concept. > > Regards > Liby Philip Mathew > Technical Consultant > > > ________________________________ > > From: James Wells [mailto:[EMAIL PROTECTED] > Sent: Tue 15-Jul-08 16:18 > To: MS-Exchange Admin Issues > Subject: Re: Edge server placement for multi-site configuration > > > > Here you go, Liby: > > 1. If they're both using the same email domain (example.com), then > you can't control what country receives the external SMTP email. You > could list both Edge servers' external IPs as MX records for the > domain, but it would be pretty random as to which country receives. > You MIGHT be able to use a hosted antispam/mail routing provider to > provide this type of logic, or maybe use a hosting provider and > rewrite the addresses from [EMAIL PROTECTED] to > [EMAIL PROTECTED], and have some logic there. But in any case > - once the mail is received by a Hub Transport server -- it'll know > how to find the right site and get the mail over where it belongs. > > 2/3. If memory serves, this is just part of the Receive/Send > connectors. The Edge servers are going to have a different logic > depending on which type (I think both are created automatically -- but > I don't deal with Edge servers on a daily basis. The Technet articles > for Edge/Hub subscription should provide more than enough detail). > See http://technet.microsoft.com/en-us/library/bb266920(EXCHG.80).aspx > > 4. Autodiscovery is based on an FQDN > (autodiscover.emaildomain.com/path or emaildomain.com/path). If you > want to make those stay local and not travel across your site-to-site > link, just ensure that the DNS name above (in that order) will resolve > to an Exchange server locally that has the service running. > > > Good luck! > > --James > > On Tue, Jul 15, 2008 at 2:59 AM, Liby Philip Mathew > <[EMAIL PROTECTED]> wrote: >> Hi >> I have 2 offices in 2 different countries with around 150 users in each. >> We >> are planning for 1 domain but 2 sites. The sites are connected by VAN >> site-to-site links using ISA 2006. Below are my requirements. How can I >> achieve it? >> >> Edge is installed in both countries and subscribed to respective >> CAS/HT/MB/UM server in respective sites. >> >> 1. Email should be send and received by the edge in the respective >> country. >> 2. Country A users should be able to tx/rx thru the edge placed in >> country >> A, site A >> 3. Country B users should be able to tx/rx thru the edge placed in >> country >> B, site B. >> 4. How will deploy Autodiscovery services for both countries (sites). >> >> Any input/suggestions highly appreciated >> >> Regards >> Liby Philip Mathew >> Consultant >> >> >> ________________________________ >> *************************DISCLAIMER****************************************** >> The information contained in this e-mail message and any attached files >> are confidential information and intended solely for the use of the >> individual or entity to whom they are addressed.This transmission may >> contain information that is privileged,confidential or exempt from >> disclosure under applicable law. If you have received this e-mail in >> error, >> please notify the sender immediately and delete all copies. If you are not >> the intended recipient, any disclosure,copying, distribution, or use of >> the >> information contained herein is STRICTLY PROHIBITED. >> Path accepts no responsibility for any errors ,omissions computer viruses >> and other defects. >> ***************************************************************************** >> >> > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ > ~ http://www.sunbeltsoftware.com/Ninja ~ > > > > > *************************DISCLAIMER****************************************** > The information contained in this e-mail message and any attached files > are confidential information and intended solely for the use of the > individual or entity to whom they are addressed.This transmission may > contain information that is privileged,confidential or exempt from > disclosure under applicable law. If you have received this e-mail in error, > please notify the sender immediately and delete all copies. If you are not > the intended recipient, any disclosure,copying, distribution, or use of the > information contained herein is STRICTLY PROHIBITED. > Path accepts no responsibility for any errors ,omissions computer viruses > and other defects. > ***************************************************************************** > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ > ~ http://www.sunbeltsoftware.com/Ninja ~ ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
