Is it possible to use Exchange 2003 if I don't have a static IP address?

I am anticipating purchasing Windows Small Business Server 2003 R2. I understand that it comes with Exchange 2003. Currently, my office uses Microsoft Outlook with a POP3 account for email. I would rather be able to have our own Exchange server to be able to take advantage of shared folders and calendars, althought this is not the only reason for needing SBS 2003. We currently have a DSL internet connection. We don't have  our own public, static IP address. Is it possible for my office to use Exchange 2003 in this setting?
aadrakeAsked:
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Bird DogCommented:
nope not that I have ever heard of. The problem I can see is you mx records would never be right since you don't have a static ip so the mail won't know how to get to you exchange server
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Michael WorshamStaff Infrastructure ArchitectCommented:
Yes, it is possible to use Exchange 2003 (in fact SBS 2003) without a static IP address.

In fact I do this for my business (which I run from my home on a dynamic IP address) and it works extemely well and was easy to configure/setup.
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chikenheadCommented:
it is possible if but you will most  need to use dynamic DNS
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Michael WorshamStaff Infrastructure ArchitectCommented:
I use DynDNS.org for converting my dynamic IP address to an 'ath.cx' address. My router, Linksys RV082, can actually login to the DynDNS.org site and update my assigned 'ath.cx' domain name with the new IP address if it changed.

I then updated my GoDaddy DNS account to convert the 'ath.cx' address and point it to my FQDN (fully qualified domain name). Then I bought and added an SSL cert with my real FQDN to SBS, thus able to do RWW and OWA securely.
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aadrakeAuthor Commented:
mwecomputers,
I'm a bit new to this. What do the RWW and OWA acronyms you used refer to?
Thanks.
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Michael WorshamStaff Infrastructure ArchitectCommented:
OWA & RWW are part of SBS 2003.

RWW: Remote Web Workplace
OWA: Outlook Web Access

Have you setup your SBS sever yet or just getting the pre-documentation of what you need to do?
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aadrakeAuthor Commented:
mwecomputers,
Thank you. I am just getting the pre-documentation of what I need to do and trying to convince myself that it is possible, before I spend the money to purchase it. It looks like DynDNS or GFI's MailEssentials are two ways to do this.
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Michael WorshamStaff Infrastructure ArchitectCommented:
One thing you always need to consider prior to setting up an SBS server environment is your network infrastructure and the number of users that are going to access it -- both on-site and off-site.

DynDNS is easiest for setting up and maintaining dynamic IP addresses, especially if you have a VPN firewall/router that can communicate to the DynDNS site to update the IP address assigned and update the dynamic DNS pointer.

GFI MailEssentials is for Anti-Spam use for the Exchange environment. One other option you might want to consider as it not only protects the Exchange server, but the SBS server and the PC clients as well is Kaspersky's Enterprise Space Security.

Kaspersky Enterprise Space Security is comprised of components for the protection of Linux and Windows workstations, file servers and mail systems.

Info: http://usa.kaspersky.com/products_services/enterprise-space-security.php
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aadrakeAuthor Commented:
Thank you. I tried to award the points based on response time, depth of answer, and putting in that extra effort to give me a complete understanding by seeking to fully understand my situation.
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