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Does Exchange have a chance to work if..

By rocktj ·
Webhost 1and1 does not support smarthosting. My company does not want me to create a public mx record (it will replace mx record for 1and1's webmail) and our entire domain is internal.
I say no, but I am being told it was done before and now I'm losing my mind trying to figure out how. I can send email all day long, send and rec internally and access the outlook web mail (just to proove I have a connection). If anyone can figure this out I would be eternally grateful. Thank you

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by rocktj In reply to Does Exchange have a chan ...

running exch 03 sp1 on the pdc

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by NOW LEFT TR In reply to Does Exchange have a chan ...

I can send email all day long (NO MX needed, just reverse lookup on the IP perhaps), send and rec internally (Local DNS MX record) and access the outlook web mail (Use IP address, no MX needed here as well).

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by rocktj In reply to

This much I know...........
Can exchange work without a public DNS record and without smart hosting ability from both the ISP and webhost. Can i rec?

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Thank you and ............

by rocktj In reply to

i put a response on a here a while ago but just logging in i don't see it. everything is different as well. wanted to say we had a public static ip, but no dns associated so i used a free dns provider and set up auto fwd, i suppose there is no way to replicate either. Also, i am only really a beginner in the priv sector, i have been in administration for 6 years but with the govt, things are done a little differently. and the budget is bigger. I am saying that this helped, and i do appreciate you taking the time, but i have to say i was a little insulted, maybe it was how i phrased my question, but i thought i was clear in conveying the fact that the company did not want a public mx record, not that i didnt know how it worked. I was told by the pres that it worked before with no public mx record, that's what was driving me crazy, he has since recanted, and i have been able to do my job. i hope you understand how thankful i am that you even responded, I also hope you can understand where i am coming from. I was asking a question to make sure i was sane, but if i didnt know dns i don't think i would have survived as a network admin. i dont think this sounds snippy, it isnt meant to, so again thank you for your help.

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by curlergirl In reply to Does Exchange have a chan ...

NO. If you are using POP3 email boxes provided by your ISP, you can download the email from those mailboxes directly to an Outlook client machine, but you can't retrieve it using Exchange. If you are using email boxes hosted on your own Exchange server, you cannot receive email unless you have a public DNS host record for that server as well as an MX record pointing to that host.

Your company management has to understand this. If your ISP is providing mailboxes with your domain email naming convention (i.e.,, and they want to use those mailboxes, then you cannot retrieve that mail using Exchange. (Unless, of course, you are running a Microsoft Small Business Server which comes with a special piece of software called the "Microsoft Small Business Server POP3 Connector." That's a different issue.) In that situation, the only option you have is to use the Outlook client on each person's workstation to download their POP3 account's email.

If, however, your company wants to host their email on your Exchange server, then you don't need the ISP's email accounts anyway. So, you can tell them to remove the MX record pointing to their mail server and put yours in instead. Why would you need the ISP's webmail in this case? If your users need/want to use a browser-based email client, then you have Outlook Web Access as your alternative.

Hope this helps!

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by curlergirl In reply to

Since you appear to be a little by of a beginner in this, I thought I should add that you have to have a static IP address on the public side of your domain in order for this to work. That is, your ISP needs to assign to you a static public IP address that you will use on your router, instead of using a dynamic IP address as most home and many small business users do. If you don't already have a static IP address, then that's the first thing you need to change before you can host your own email on your Exchange server.

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