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E-mail Hosting Question

Posted on 2002-04-16
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Last Modified: 2010-04-13
Current Profile - DSL connection through local ISP.  They provided e-mail and internet.  We also have internal e-mail using "Workgruopmail".  I would like to assign e-mail addresses for all employees using exchange server 2000 (recently purchased)and eleviate the ISP mamil. I don't want to have to pay for domain registratrion I would like to host the domain and mail.  How is this done.  Easy or Hard.  I will give more points if requested.  Thanks
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Question by:craryg
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jmiller47 earned 60 total points
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First of all, does your DSL service give you a static or Dynamic IP address?

If you want to host an Internet Services such as mail or a web site on your own computers and have them accessible from the Internet, then you pretty much register a Domain name.

The only way around this is to have a static IP address and have your users out on the Internet use that IP address instead of using a common Internet Domain name like mail.yourdomain.com. Your users would have to define their mail server (or http web server...) as something like 63.184.215.34 or such. Also, for anyone to reach your web site, they would have to use the IP address.

If you would like to register a Domain name instead of doing this then you must go through a Name Registar. I suggest http://www.godaddy.com .

To register a Domain name you must have 2 DNS servers to resolve the name for you. This is mandatory. You can most likely have your ISP or possibly your name registar do this for you.

I hope this helps.
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by:craryg
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Thanks for the help - I work for a business that has a static IP assigned through a DSL router.  right now all mail recieved is through the ISP we get 5 addresses.  I am looking for a way to create my own e-mail addresses for my company.org and want to remove the ISP as much as possible.  Can this be done by just registering a domain name with a listed company on the internet.  I am running SBS 2000 w/ exchange.  We just have an internal e-mail system right now, so the majority of employees (50+) are restricted to internal mail only via workgroupmail, A program purchased by the person I replaced.  We have a website already, but it is hosted and managed by an outsourced company.  Just looking for the simpliest way to do this.  Thanks again
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by:craryg
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Thanks for the help - I work for a business that has a static IP assigned through a DSL router.  right now all mail recieved is through the ISP we get 5 addresses.  I am looking for a way to create my own e-mail addresses for my company.org and want to remove the ISP as much as possible.  Can this be done by just registering a domain name with a listed company on the internet.  I am running SBS 2000 w/ exchange.  We just have an internal e-mail system right now, so the majority of employees (50+) are restricted to internal mail only via workgroupmail, A program purchased by the person I replaced.  We have a website already, but it is hosted and managed by an outsourced company.  Just looking for the simpliest way to do this.  Thanks again
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by:jmiller47
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Well then the answer to you question is yes. You should however make sure to ask your question more along the lines of "How can I accomplish this?". -Just FYI

Exchange is a good way to approach this and what you will want to do is to give your Exchange Server a static IP.

Then use NAT on the DSL Router to make sure that one of the IP addresses you were given by your ISP using port 110 (POP3) and Port 25 (SMTP) get routed to your Exchange server. This will ensure that an traffic using that IP address using port 110 from the Internet get sent to your Exchange Server. Therefore, if a user using a e-mail client like Outlook put in that IP address as their incoming (POP3) server and checked their mail, they would find it.

The next thing to address is making sure that Internet users don't need to use your IP address, but can use a domain name like pop.yourcompany.com.

The best way to do this is to go to a compnay like GoDaddy and register your domain name. I'll use the domain name yourcompany.com in this example. When you register it, they will ask what 2 Internet DNS servers you are going to use for name resolution.

You must set this up ahead of time. I suggest you ask your ISP to do this for you. I'm sure it will cost some money, put probably an very negligible amount.

Tell your ISP that you want to register the name yourcompany.com with someone and ask them if you can use their DNS servers for name resolution. Then tell them you also want to register pop.yourcompany.com (and possibly www.yourcompany.com) to the Internet IP address you selected earlier.

After you get that all done, a user on the Internet can open Outlook (or whatever...) and create a new POP3 account pointing at pop.mycompany.com as their incoming POP3 Server.

I would however suggest that if you have people checking their mail from the Internet, that you have them use the Web Interface in which you would make sure that Port 80 in your router for that IP address goes to your exchange server, register mail.mycompany.com  going to the same IP address with your ISP, and enable the webmail function of Exchange.

You can then have users on the Internet open a web browser, type in mail.yourcompany.com and after putting in their username and password, they will be able to read their web e-mail from any web browser without any additional software.

For incoming e-mail from the Internet, you will, I believe, tell your ISP that you want a MX record in your DNS zone that will point to smtp.yourcompany.com and that will also resolve to your Exchnage server's IP address on port 25. Then, if anyone sends an e-mail to someone@yourcompany.com, it resolves yourcompany.com from your ISP, then the MX record tells it that the mail server is smtp.yourcompany.com, which it resolves to your Exchange Server's IP address on port 25. Your Exchange Server then looks up someone in it's list of users and sends the mail to that user's mailbox.

I hope that helps.
Let me know if there is any additional info that you want to know.
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