Windows Vista Forums

Multiple email domains SBS 2003
  1. #1


    kevin Guest

    Multiple email domains SBS 2003

    I have added a second email domain to my SBS 2003 box and can send and
    receive without an issue.

    I do have a question regarding the reverse DNS.

    When I check the MX record for the new domain the Microsoft ESMTP MAIL
    Service replies with the main public email domain for the SBS box.

    Is this going to cause issues sending email?



    Any work around?

    Thanks

    Kevin

      My System SpecsSystem Spec

  2. #2


    Ace Fekay [MCT] Guest

    Re: Multiple email domains SBS 2003

    "kevin" <21stcenturycommunications@newsgroup> wrote in message
    news:7593aeb6-9522-4daa-8937-f8b8de6f8dd6@newsgroup

    >I have added a second email domain to my SBS 2003 box and can send and
    > receive without an issue.
    >
    > I do have a question regarding the reverse DNS.
    >
    > When I check the MX record for the new domain the Microsoft ESMTP MAIL
    > Service replies with the main public email domain for the SBS box.
    >
    > Is this going to cause issues sending email?
    >
    > Any work around?
    >
    > Thanks
    >
    > Kevin

    Kevin,

    I'm not sure what you mean by:
    "> When I check the MX record for the new domain the Microsoft ESMTP MAIL

    > Service replies with the main public email domain for the SBS box."
    Does that mean you used a telnet session to your SBS? Please elaborate on
    how you checked it.

    Normally, to test to see if the MX record was created correctly, we can use
    nslookup and setting the query to MX, such as:

    nslookup

    > set q=mx
    yourPublicDomainName.com
    results show here

    To test a reverse entry:
    nslookup

    > TypeInTheIpAddressOfYourMxRecord
    results show here

    If you use telnet to test connectivity to your server from the outside world
    (such as from home), open telnet, then type in:
    open mail.domain.com 25

    You should see it open up to your mail server's SMTP FQDN banner, which
    should match your MX record.

    If receiving for multiple domains, you can simply specify that domain2.com's
    MX record is set to domain1.com's MX. This will simplify setting it up, as
    well as SPF records.


    --
    Ace

    This posting is provided "AS-IS" with no warranties or guarantees and
    confers no rights.

    Please reply back to the newsgroup or forum for collaboration benefit among
    responding engineers, and to help others benefit from your resolution.

    Ace Fekay, MCT, MCTS Exchange, MCSE, MCSA 2003 & 2000, MCSA Messaging
    Microsoft Certified Trainer

    For urgent issues, please contact Microsoft PSS directly. Please check
    http://support.microsoft.com for regional support phone numbers.


      My System SpecsSystem Spec

  3. #3


    Lanwench [MVP - Exchange] Guest

    Re: Multiple email domains SBS 2003

    kevin <21stcenturycommunications@newsgroup> wrote:

    > I have added a second email domain to my SBS 2003 box and can send and
    > receive without an issue.
    >
    > I do have a question regarding the reverse DNS.
    >
    > When I check the MX record for the new domain the Microsoft ESMTP MAIL
    > Service replies with the main public email domain for the SBS box.
    >
    > Is this going to cause issues sending email?
    >
    > Any work around?
    >
    > Thanks
    >
    > Kevin
    This is not a problem. The MX record for blah.com can specify
    mail.yaddayaddayadda.com .... and the server's SMTP banner can read
    server.domain.local. And the RDNS entry for the public IP can point to
    something.somebodyelse.com.



      My System SpecsSystem Spec

  4. #4


    kevin Guest

    Re: Multiple email domains SBS 2003

    On Sep 5, 9:57*am, "Lanwench [MVP - Exchange]"
    <lanwe...@newsgroup> wrote:

    > kevin <21stcenturycommunicati...@newsgroup> wrote:

    > > I have added a second email domain to my SBS 2003 box and can send and
    > > receive without an issue.
    >

    > > I do have a question regarding the reverse DNS.
    >

    > > When I check the MX record for the new domain the Microsoft ESMTP MAIL
    > > Service replies with the main public email domain for the SBS box.
    >

    > > Is this going to cause issues sending email?
    >

    > > Any work around?
    >

    > > Thanks
    >

    > > Kevin
    >
    > This is not a problem. The MX record for blah.com can specify
    > mail.yaddayaddayadda.com .... and the server's SMTP banner can read
    > server.domain.local. And the RDNS entry for the public IP can point to
    > something.somebodyelse.com.- Hide quoted text -
    >
    > - Show quoted text -
    Thanks,,,

      My System SpecsSystem Spec

  5. #5


    kevin Guest

    Re: Multiple email domains SBS 2003

    On Sep 4, 10:06*pm, "Ace Fekay [MCT]" <ace...@newsgroup>
    wrote:

    > "kevin" <21stcenturycommunicati...@newsgroup> wrote in message
    >
    > news:7593aeb6-9522-4daa-8937-f8b8de6f8dd6@newsgroup
    >

    > >I have added a second email domain to my SBS 2003 box and can send and
    > > receive without an issue.
    >

    > > I do have a question regarding the reverse DNS.
    >

    > > When I check the MX record for the new domain the Microsoft ESMTP MAIL
    > > Service replies with the main public email domain for the SBS box.
    >

    > > Is this going to cause issues sending email?
    >

    > > Any work around?
    >

    > > Thanks
    >

    > > Kevin
    >
    > Kevin,
    >
    > I'm not sure what you mean by:
    > "> When I check the MX record for the new domain the Microsoft ESMTP MAIL
    >

    > > Service replies with the main public email domain for the SBS box."
    >
    > Does that mean you used a telnet session to your SBS? Please elaborate on
    > how you checked it.
    >
    > Normally, to test to see if the MX record was created correctly, we can use
    > nslookup and setting the query to MX, such as:
    >
    > nslookup> set q=mx
    >
    > yourPublicDomainName.com
    > results show here
    >
    > To test a reverse entry:
    > nslookup> TypeInTheIpAddressOfYourMxRecord
    >
    > results show here
    >
    > If you use telnet to test connectivity to your server from the outside world
    > (such as from home), open telnet, then type in:
    > open mail.domain.com 25
    >
    > You should see it open up to your mail server's SMTP FQDN banner, which
    > should match your MX record.
    >
    > If receiving for multiple domains, you can simply specify that domain2.com's
    > MX record is set to domain1.com's MX. This will simplify setting it up, as
    > well as SPF records.
    >
    > --
    > Ace
    >
    > This posting is provided "AS-IS" with no warranties or guarantees and
    > confers no rights.
    >
    > Please reply back to the newsgroup or forum for collaboration benefit among
    > responding engineers, and to help others benefit from your resolution.
    >
    > Ace Fekay, MCT, MCTS Exchange, MCSE, MCSA 2003 & 2000, MCSA Messaging
    > Microsoft Certified Trainer
    >
    > For urgent issues, please contact Microsoft PSS directly. Please checkhttp://support.microsoft.comfor regional support phone numbers.
    I use MXTOOLBOX.COM to check the mx records ... My question was if my
    mailserver was xxx.com and my email domain was yyy.org and my server
    responds to mxtoolbox that yyy.org mailserver responded with xxx.com
    whould this be a issue.

    according to lanwrench this should not be a issue.

    Thanks

      My System SpecsSystem Spec

  6. #6


    Ace Fekay [MCT] Guest

    Re: Multiple email domains SBS 2003

    > On Sep 4, 10:06*pm, "Ace Fekay [MCT]" <ace...@newsgroup>

    > wrote:

    >> "kevin" <21stcenturycommunicati...@newsgroup> wrote in message
    >>
    >> news:7593aeb6-9522-4daa-8937-f8b8de6f8dd6@newsgroup
    >>

    >>> I have added a second email domain to my SBS 2003 box and can send and
    >>> receive without an issue.
    >>

    >>> I do have a question regarding the reverse DNS.
    >>> When I check the MX record for the new domain the Microsoft ESMTP MAIL
    >>> Service replies with the main public email domain for the SBS box.
    >>> Is this going to cause issues sending email?
    >>> Any work around?
    >>

    >>> Thanks
    >>

    >>> Kevin
    >>
    >> Kevin,
    >>
    >> I'm not sure what you mean by:
    >> "> When I check the MX record for the new domain the Microsoft ESMTP MAIL
    >>

    >>> Service replies with the main public email domain for the SBS box."
    >>
    >> Does that mean you used a telnet session to your SBS? Please elaborate on
    >> how you checked it.
    >>
    >> Normally, to test to see if the MX record was created correctly, we can use
    >> nslookup and setting the query to MX, such as:
    >>
    >> nslookup> set q=mx
    >>
    >> yourPublicDomainName.com
    >> results show here
    >>
    >> To test a reverse entry:
    >> nslookup> TypeInTheIpAddressOfYourMxRecord
    >>
    >> results show here
    >>
    >> If you use telnet to test connectivity to your server from the outside world
    >> (such as from home), open telnet, then type in:
    >> open mail.domain.com 25
    >>
    >> You should see it open up to your mail server's SMTP FQDN banner, which
    >> should match your MX record.
    >>
    >> If receiving for multiple domains, you can simply specify that domain2.com's
    >> MX record is set to domain1.com's MX. This will simplify setting it up, as
    >> well as SPF records.
    >>
    >> --
    >> Ace
    >>
    >> This posting is provided "AS-IS" with no warranties or guarantees and
    >> confers no rights.
    >>
    >> Please reply back to the newsgroup or forum for collaboration benefit among
    >> responding engineers, and to help others benefit from your resolution.
    >>
    >> Ace Fekay, MCT, MCTS Exchange, MCSE, MCSA 2003 & 2000, MCSA Messaging
    >> Microsoft Certified Trainer
    >>
    >> For urgent issues, please contact Microsoft PSS directly. Please
    >> checkhttp://support.microsoft.comfor regional support phone numbers.
    >
    > I use MXTOOLBOX.COM to check the mx records ... My question was if my
    > mailserver was xxx.com and my email domain was yyy.org and my server
    > responds to mxtoolbox that yyy.org mailserver responded with xxx.com
    > whould this be a issue.
    >
    > according to lanwrench this should not be a issue.
    >
    > Thanks
    I agree with Lanwench. No problem at all. Many companies have hosted
    Exchange, or hosting multiple domain emails, and work fine.

    I would just make sure your SPF record for the additional domains
    reflect they can come from your current IP address without indicating
    domain names, this way it's a bit more generic and will cover all
    domains that send mail from this IP. One example, which works fine
    (used this format at a large corporation with multiple domain names):

    v=spf1 ip4:YourWanIpAddress/32 -all


    Ace

    --
    Ace

    This posting is provided "AS-IS" with no warranties or guarantees and
    confers no rights.

    Please reply back to the newsgroup or forum for collaboration benefit
    among responding engineers, and to help others benefit from your
    resolution.

    Ace Fekay, MCT, MCTS Exchange, MCSE, MCSA 2003 & 2000, MCSA Messaging
    Microsoft Certified Trainer

    For urgent issues, please contact Microsoft PSS directly. Please check
    http://support.microsoft.com for regional support phone numbers.



      My System SpecsSystem Spec

  7. #7


    Lanwench [MVP - Exchange] Guest

    Re: Multiple email domains SBS 2003

    kevin <21stcenturycommunications@newsgroup> wrote:

    > On Sep 5, 9:57 am, "Lanwench [MVP - Exchange]"
    > <lanwe...@newsgroup> wrote:

    >> kevin <21stcenturycommunicati...@newsgroup> wrote:

    >>> I have added a second email domain to my SBS 2003 box and can send
    >>> and receive without an issue.
    >>

    >>> I do have a question regarding the reverse DNS.
    >>

    >>> When I check the MX record for the new domain the Microsoft ESMTP
    >>> MAIL Service replies with the main public email domain for the SBS
    >>> box.
    >>

    >>> Is this going to cause issues sending email?
    >>

    >>> Any work around?
    >>

    >>> Thanks
    >>

    >>> Kevin
    >>
    >> This is not a problem. The MX record for blah.com can specify
    >> mail.yaddayaddayadda.com .... and the server's SMTP banner can read
    >> server.domain.local. And the RDNS entry for the public IP can point
    >> to something.somebodyelse.com.- Hide quoted text -
    >>
    >> - Show quoted text -
    >
    > Thanks,,,
    No problem. If you do run into trouble with mail delivery, the other admins
    are being way too overzealous about 'security' and are not well-read in the
    RFCs for SMTP mail.



      My System SpecsSystem Spec

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