While we can send email via a SMTP connection to a regular Office365 mailbox,
Microsoft places limits on the delivery speed and maximum messages per day. An alternative
is to configure Office365 SMTP Relay which will ensure your mail client does not limit or block
emails sent from Litmos. The majority of this work will need to be conducted by whoever has
full admin access to your organization’s account, such as your Mail and/or DNS Administrator,
as they will need to sign into https://admin.microsoft.com/AdminPortal.

Mail Administrator: Create a Connector

1. From the Admin Portal homepage, select Exchange under Admin Center
2. Select connectors under the mail flow heading
3. Press + to add a connector
4. Complete the mail flow scenario
   • From: select Partner organization
   • To: select Office 365
   • Press Next
5. Name the new connector
   
   • Enter a name and description
   • Ensure the Turn it on checkbox is checked
   • Press Next
6. Specify whether you want to use a domain or IP address to identify the partner organization.
   
   • Select Use the sender's IP address
   • Press Next
7. Add all of our IP Addresses
   
   • Press +
   • Enter the first IP Address
   • Press OK
   • Repeat steps a through c for each IP Address
   • Press Next
8. Select the security restrictions you want to apply
   
   1. Ensure the Reject email messages if they aren't sent over TLS checkbox is selected
   2. Press Next
9. Review your new connector
10. Press Save

DNS Administrator: Update the Domain’s SPF Record

1. Add the Litmos IP addresses to your SPF record in DNS

ip4:23.253.9.220 ip4:23.253.9.221 ip4:104.130.85.7
ip4:108.171.167.255 ip4:161.47.83.173 ip4:162.209.38.195
ip4:162.242.176.254 ip4:166.78.198.138 ip4:184.106.37.245

Mail or DNS Administrator: Provide Details to the Litmos Administrator

1. From the Admin Portal homepage, select Domains under Settings
2. Select your domain
3. Select DNS records
   • Open the MX Record
   • Copy and paste the Points to address or Value to give to the Litmos Administrator
   • Press Done
     You can also look up the MX record using a command line tool like nslookup or dig or an
     online tool like MX Toolbox.

Litmos Administrator: Enable SMTP

Follow the steps in article Custom SMTP Server to enable this feature.