Create DNS records at Heart Internet for Office 365
Contributors: 
Check the Domains FAQ if you don't find what you're looking for.
If Heart Internet is your DNS hosting provider, follow the steps in this article to verify your domain and set up DNS records for email, Skype for Business Online, and so on.
These are the main records to add. (Need more help? Get support.)
After you add these records at Heart Internet, your domain will be set up to work with Office 365 services.
To learn about webhosting and DNS for websites with Office 365, see Use a public website with Office 365.
Note: Typically it takes about 15 minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you're having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.
Add a TXT record for verification
Before you use your domain with Office 365, we have to make sure that you own it. Your ability to log in to your account at your domain registrar and create the DNS record proves to Office 365 that you own the domain.
Note: This record is used only to verify that you own your domain; it doesn't affect anything else. You can delete it later, if you like.
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To get started, go to your domains page at Heart Internet by using this link. You'll be prompted to log-in first.
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On the Manage Domain Names page, in the drop-down list in the Manage Domain Parking section, select the name of the domain you're updating.
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Choose Manage Now.
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In the Manage Domain section, choose DNS Management.
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In the TXT Records section, in the Text box for the new record, type or copy and paste the value from the following table.
(You may have to scroll down.)
Subdomain
Text
(Leave this field empty.)
MS=msXXXXXXXX
Note: This is an example. Use your specific Destination or Points to Address value here, from the table in Office 365.
How do I find this?
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Choose Update DNS.
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Wait a few minutes before you continue, so that the record you just created can update across the Internet.
Now that you've added the record at your domain registrar's site, you'll go back to Office 365 and request Office 365 to look for the record.
When Office 365 finds the correct TXT record, your domain is verified.
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On the Domains page, choose the domain that you are verifying.
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On the Setup page, choose Start setup.
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On the Verify domain page, choose Verify.
Note: Typically it takes about 15 minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you're having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.
Add an MX record so email for your domain will come to Office 365
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To get started, go to your domains page at Heart Internet by using this link. You'll be prompted to log-in first.
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On the Manage Domain Names page, in the drop-down list in the Manage Domain Parking section, select the name of the domain you're updating.
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Choose Manage Now.
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In the Manage Domain section, choose DNS Management.
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In the MX Records section, in the boxes for the new record, type or copy and paste the values from the following table.
(You may have to scroll down.)
Subdomain
Mail server
Priority
(Leave this field empty.)
<domain-key>.mail.protection.outlook.com.
This value MUST end with a period (.)
Note: Get your <domain-key> from your Office 365 portal account.
How do I find this?0
For more information about priority, see What is MX priority?
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Choose Update DNS.
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If there are any other MX records in the MX Records section, remove them by selecting each of them in the Delete column and then choosing Update DNS again.
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Then choose Update DNS again.
Add the six CNAME records that are required for Office 365
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To get started, go to your domains page at Heart Internet by using this link. You'll be prompted to log-in first.
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On the Manage Domain Names page, in the drop-down list in the Manage Domain Parking section, select the name of the domain you're updating.
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Choose Manage Now.
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In the Manage Domain section, choose DNS Management.
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Add the first two of the six CNAME records.
In the CNAME Records section, in the boxes for the two new records, type or copy and paste the values from the first two rows of the following table.
(You may have to scroll down.)
Subdomain
Address
autodiscover
autodiscover.outlook.com.
This value MUST end with a period (.)
sip
sipdir.online.lync.com.
This value MUST end with a period (.)
lyncdiscover
webdir.online.lync.com.
This value MUST end with a period (.)
msoid
clientconfig.microsoftonline-p.net.
This value MUST end with a period (.)
enterpriseregistration
enterpriseregistration.windows.net.
This value MUST end with a period (.)
enterpriseenrollment
enterpriseenrollment.manage.microsoft.com.
This value MUST end with a period (.)
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Choose Update DNS.
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Add the other four CNAME records.
In the Create New A/AAAA/CNAME records section, create records using the values from the next two rows in the table, and then again choose Update DNS.
Repeat this process until you have created all six CNAME records.
Add a TXT record for SPF to help prevent email spam
Important: You cannot have more than one TXT record for SPF for a domain. If your domain has more than one SPF record, you'll get email errors, as well as delivery and spam classification issues. If you already have an SPF record for your domain, don't create a new one for Office 365. Instead, add the required Office 365 values to the current record so that you have a single SPF record that includes both sets of values. Need examples? Check out these details and sample SPF records. To validate your SPF record, you can use one of these SPF validation tools.
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To get started, go to your domains page at Heart Internet by using this link. You'll be prompted to log-in first.
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On the Manage Domain Names page, in the drop-down list in the Manage Domain Parking section, select the name of the domain you're updating.
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Choose Manage Now.
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In the Manage Domain section, choose DNS Management.
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In the TXT Records section, in the Text box for the new record, type or copy and paste the value from the following table.
(You may have to scroll down.)
Subdomain
Text
(Leave this field empty.)
v=spf1 include:spf.protection.outlook.com -all
Note: We recommend copying and pasting this entry, so that all of the spacing stays correct.
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Choose Update DNS.
Add the two SRV records that are required for Office 365
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To get started, go to your domains page at Heart Internet by using this link. You'll be prompted to log-in first.
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On the Manage Domain Names page, in the drop-down list in the Manage Domain Parking section, select the name of the domain you're updating.
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Choose Manage Now.
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In the Manage Domain section, choose DNS Management.
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In the SRV Records section, in the boxes for the new records, type or copy and paste the values from the following table.
(You may have to scroll down.)
(Select the Service and Proto values from the drop-down lists. For the Service value for the second record, choose (Enter your own) in the drop-down list, and then type or copy and paste the value _sipfederationtls)
Service
Proto
Server
Port
Pri
Wei
SIP
TLS
sipdir.online.lync.com.
This value MUST end with a period (.)
443
100
1
_sipfederationtls
TCP
sipfed.online.lync.com.
This value MUST end with a period (.)
5061
100
1
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Choose Update DNS.
Note: Typically it takes about 15 minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you're having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.
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