Setting up Office 365 Records
Linking your Office 365 service to a domain using 101domain's name servers is relatively easy and this guide will help you walk through the process.
A note on TTL, You will notice that in this guide, we leave the TTL value set to 6 hours, the default value for our name servers.
We do support lower TTL values if you expect to change the records in the near future, but for most scenarios, the TTL value is not important.
This guide will use the records found within this corresponding guide from Microsoft:
https://docs.microsoft.com/en-us/office365/admin/get-help-with-domains/create-dns-records-at-any-dns-hosting-provider
Steps
To start, ensure that you've added your domain name to your Office 365 subscription.
Navigate to your 101domain account, click on Manage Name Servers, Choose your domain, and then choose, "I want to edit my name server records"
Add your first record, the MX record.
At the top, line, change the record type to MX
Enter 0 for the priority,
For the Value, enter
<example.com>.mail.protection.outlook.com
Click Save to finish adding the MX record.
Next, add the 3 CNAME records
In the first box for Subdomain, enter the Host field of the first CNAME record, in this case it is the word autodiscover
Ensure the record type is set to CNAME
In the last box, enter the "Point To" address, autodiscover.outlook.com
Click Save to the far right, then empty out the boxes and repeat the steps for the other two records
Subdomain/Host Value/Points to autodiscover autodiscover.outlook.com lyncdiscover webdir.online.lync.com sip sipdir.online.lync.com
Add a TXT record for SPF
Ensure that the first box for subdomain is blank
Set the record type as TXT
In the value field, enter:
v=spf1 include:spf.protection.outlook.com -all
Add the SRV records
Subdomain/Host Priority Weight Port Value/Points to _sip._tls 100 1 443 sipdir.online.lync.com _sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com Ensure the first box for subdomain is blank
Set the record type as SRV
In the subdomain box, enter
_sip._tls
Set the Weight to 1, set the priority to 100, and set the port to 443
In the last box, enter the target:
sipdir.online.lync.com
and click Save
Add the second SRV record
Ensure the first box for subdomain is blank
Ensure the record type is SRV
In the first box for subdomain, enter
_sipfederationtls._tcp
Set the weight to 1, set the priority to 100, and set the port to 5061
In the last box, enter the target:
sipfed.online.lync.com
and click Save
Wait for the changes to propagate and then verify through Office 365