Two Domains, one Server, two different hosting companies

Posted on 2006-05-26
Last Modified: 2010-05-18
Right, this is a bit complicated.
well either that or ill make it complicated by talking rubbish..

anyhow Our company has two email domains at present. is based on our current Exchange 2003 server.
the ISP look after the domain names , mx records etc.
They recieve the mail, then we pick it up from their servers via a 3rd party hardbox (Inty Exoserver) and drop it into our exchange server (pop3 multiheader drop ?)

This works fine for us, and we have a backup if our server goes down (i think :P) is hosted by MCI, and is just a pop3 service.
We have local and remote laptop users connecting via pop3 to download their emails.
We do have some users who have theres picked up by the Inty Exoserver and forwarded to their address.

We really want to move away from MCI, and have all the mail based on the exchange server.. all backed up , got control of different email address make ups etc.

The A.D/Exchange server look after mailboxes, but it has contacts set up with smtp addresses of, so that are comp2 users have a full address list.

Whats the best way of getting both comp1 and comp2 on the same server.
and eventually defaulting to a domain of rather than

ive confused my self more than enuff, any questions ill try and answer the best i can :( as theres bound to be a few before a result
Question by:acstua
    LVL 1

    Accepted Solution

    Your problem looks to me more like an administrative one. You gave them full control over your domain configuration then you waste your time on phone calls and head breaking. I never let the ISP's/Hosting companies control my domains.

    From my viewpoint you should concentrate on getting control over your domains after that everything will be a snap.

    I have never worked with your ISP's and other companies you mentioned but I would suggest you to upgrade MCI to a dns and smtp services then forward emails (using an mx record) from mci to If MCI cannot be upgraded, stop using them and host in

    The bottom line is get control over your systems.

    Author Comment

    MCI was the original host setup by a previous IT manager, and the was part of a company we took over.
    So it was a bit of a mess to start with :)

    Id rather get rid of MCI totally, as we get quite a few problems with them

    Im worried about just having a MX record pointing straight to our email server , incase our server goes down.
    what happens to the inbound emails, bounce backs i assume?

    i do already have two other domains with straight MX records to our Mailservers IP tho ;/
    LVL 1

    Expert Comment

    MCI is not an insurance policy to your servers' stability. You should take other measures to protect your servers and users.

    What I am saying is another MX record will not be the thing that will break down your server unless it is a very busy server and/or your com domain is a very busy too.

    KISS (keep it simple stupid). Exchange is already a complicated server don't make it further complicated by messing with an unreliable suppliers.

    Last, use acceptable means to keep your servers happy. Use redundancy, best hardware, separate server rules, tested backup etc


    Author Comment

    im happy with the hardware, new HP servers with plenty of redundancy built in, along with some heavy duty UPS and plenty of backups.

    its the bit on how to get both domains running on the servers, and not losing email.
    its the transition im worried about
    LVL 7

    Assisted Solution

    Here is the KISS: (keep it simple stupid or short).



    Author Comment

    Many thanks, ill have a read on Monday :)
    LVL 1

    Expert Comment

    december41991, in this article the author describes a rare and complicated senario which is not what acstua face.

    Good articles for KISS with exchange can be:
    1. Do not install Exchange on DC see and
    2. Best practices see,295582,sid43_gci1137425,00.html and

    And thousands more.
    LVL 104

    Assisted Solution

    If you want to keep things simple, then you want to dump Demon Internet fast.
    If you are using their servers for email, then expect email to be delayed. I have had clients on Demon servers who have had email delivered six weeks after it was sent because it was stuck inside their awful relay servers. Will they listen. What do you think?

    Then there is their attitude to DNS changes - they rebuild their DNS records at 5pm (IIRC) and not before, so if you need something changed it can be well over 48 hours before it is replicated.

    I am responsible for Demon loosing well over £25k a year in revenue because I have migrated all of my clients off their services, which has included two leased lines at well over £10k a year each.

    Get your domains off their servers - I usually switch to However be prepared for a fight and the usual fud about being unable to use their services if you move the domains away - that is just untrue. They know it as well, they just try to tell you that to hang on to your business. You need to get the domains out first - before you even start giving notice periods as they know that if they stall things long enough you will do anything to hang on to your domain name.

    Thus, a quick plan...

    1. Move your domains to someone else. This is a domain transfer so will cost a little bit of money.
    2. Look at your internal domain configuration. Exchange can deal with multiple SMTP domains quite happily. However you can only have an Exchange server in one AD domain, so decide what you are keeping.
    3. Setup Exchange in the way that you want and test it.
    4. Then look at deploying Exchange by getting your MX records changed to point directly at the server.

    You may want to throw in a new ISP in that mix somewhere. Depending on the type of connection you want, there is a pretty good choice for business ISPs in the UK. My preference at the moment is Pipex - I have a number of customers on their leased lines and it has been very impressive. The DSL market is very healthy, you shouldn't need to pay more than £50 for a good connection with a low contention ratio.

    Also review your firewall and antivirus and antispam applications, as you will now be doing that yourself as well.

    That is a real rough plan as I am on site at the moment. If you need some gaps filled in, then post back.


    Author Comment

    Sounds good so far, its a shame its such a mess in the 1st place..
    if the company had used some foresight we'd have been on a domain comp1 and got rid of the comp2 domain straight away when merging companys.

    no matter, no doubt ill be back on tuesday for more follow up on this :)

    Cheers so far!

    Featured Post

    IT, Stop Being Called Into Every Meeting

    Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

    Join & Write a Comment

    Suggested Solutions

    Title # Comments Views Activity
    IDFix X500 addresses 5 18
    Outlook exchange 2 38
    Your Mailbox is almost full! 31 53
    exchange 2 10
    "Migrate" an SMTP relay receive connector to a new server using info from an old server.
    Check out this infographic on what you need to make a good email signature that will work perfectly for your organization.
    In this video we show how to create a Contact in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Contact ta…
    The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…

    728 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    16 Experts available now in Live!

    Get 1:1 Help Now