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Exchange server 2003 mail hosting with ISP

we have Exchange server 2003 sp2 installed on SBS 2003 box and its working perfectly.
we plan to move our office to new location, so our server will be down for one day, what settings or configuration i have to do so i dont loose any mails which deliver to our exchange server during down time.
i have some idea that ISP can store mails then forward to our exchange but i dont know how to setup with isp or with exchange server.

please guide me
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sandypatel
Asked:
sandypatel
1 Solution
 
BrentDevOpsCommented:
The easiest thing to do would be to let the mail be delayed.  Most email servers will try to connect at standard intervals throughout the day for 3 days.  Obviously its up to the email admin of the sending host as to how long their server tries, but if its a weekend, not a really big deal.

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The other option would be setup your exchange server MX record on your registrars site as a priority level 20 and your web hosts mail server as a Level 10.  You would have to make sure all the accounts that exist in your exchange server, exist on their servers.  Then you would have to configure the pop3 connector on the SBS server to pull email from the web hosts server.  This gets tedious and time consuming the more users you have.

http://www.microsoft.com/downloads/details.aspx?FamilyID=bcd69fad-fd54-4e0a-b6cb-1bd77b62ce38&displaylang=en

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The other option is to ask your web hosting company if they provide mailbagging services.  If they do, they should be able to set you up for when your ready to move.  This will still involve messing with your DNS records to set MX priority, but it should prevent any mail loss and not force you to use the dreaded POP3 connector.

http://www.webservio.com/services/mailbagging/emailBagging.html
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Make sure to give DNS atleast 3 days to take effect before messing with servers.
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