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Why Multiple “MS=“ TXT records for the same domain?

Anonymous
2018-10-25T06:28:46+00:00

Hi guys,

Question

+++++++

Im new to Office 365.

Just joined my company and seen two “MS=“ TXT domain verification records for the same domain.

#! What could be the purpose for using them?

#! Is the domain verified from time to time using new records?

Thanks.

Microsoft 365 and Office | Subscription, account, billing | For home | Windows

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Anonymous
2018-10-25T08:14:15+00:00

Hi ADiAdi2,

Thank you for your message.

In our case, if you add a domain and you only need one "MS=" TXT record to verify.

The situation you are experiencing may be due to the previous failure to add a domain, and then repeatedly add this domain, in which case there will be a different "MS=" TXT record.

At the same time, as you mentioned above, the format of record is indeed the same as MS=“ms”+”eight digits”.

Regards,

Sukie

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Anonymous
2018-10-25T10:28:00+00:00

HI ADiAdi2

The domain name cannot change , cannot be modified .

The format , number of digits depend on the mail provider. In fact can be a MX record instead of a TXT. Is like the verification code you receive in your phone to confirm an operation. You bank might use 8 digits, your email account might use 6 digits, there is no predefined format

I have two TXT MS myself because time ago I removed the domain and then added it again to the Office portal

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  1. Anonymous
    2018-10-25T08:36:11+00:00

    Hi Sukie,

    Thank you for the reply.

    The situation you are experiencing may be due to the previous failure to add a domain, and then repeatedly add this domain, in which case there will be a different "MS=" TXT record.

    +++++++++++++++++++++++++++++++++++++++++++++++++++++++++

    This must be the reason.

    Why the domain will fail to be added? 

    The “MS” TXT is renewed with every failure to add a domain?

    At the same time, as you mentioned above, the format of record is indeed the same as MS=“ms”+”eight digits”.

    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++

    If it is not confidential and such: how are the 8 digits assigned? What kind of algorithm? Is some info hardcoded,encoded etc in them?

    Thank you for your professional support.

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  2. Anonymous
    2018-10-25T06:57:18+00:00

    Hi Germain,

    Thank you for the reply.

    I) If your domain was previously in another mail service, like Google, may have another MS record, for the same reason , to validate domain ownership.

    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++

    Sorry if my comment is not in topic :)

    My understanding is that the TXT record lke “MS=“ is used for domain ownership verification >> https://help.hover.com/hc/en-us/articles/221933708-How-to-Office-365-domain-verification-and-email-configuration

    Snip /* NOTE: This TXT record is used only to verify that you own the domain; it doesn’t affect any other connections. */ 

    Could be that the domain name changed?

    Can see one record starting with a number lower than another.Maybe its the oldest one.

    Btw: how is the record format elected?  All are like >> MS=“ms”+”eight digits”

    II) That is a one time operation and there is no need to repeat as long your are using the same mail provider.

    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++

    mail provider?

    Thank you.

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  3. Anonymous
    2018-10-25T06:40:02+00:00

    HEllo ADiAdi2 !

    If your domain was previously in another mail service, like Google, may have another MS record, for the same reason , to validate domain ownership.

    That is a one time operation and there is no need to repeat as long your are using the same mail provider.

    Best regards !

    germain

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