Note: Before you connect, make sure that you have SMTP and IMAP enabled in your Microsoft Admin Console for the accounts that you want to connect before you proceed. Check the guidance here.
You can connect your Microsoft 365 account to Instantly with these procedures.
1. Log in to Your Instantly Account
Begin by logging in to your Instantly account using your credentials.
2. Access the Email Accounts Tab
Once logged in, navigate to the Email Accounts tab.
3. Add a New Email Account
In the Email Accounts tab, locate the option to "Add new" and click on it.
4. Choose Office 365/Outlook
Select "Office 365 / Outlook" from the list of available options.
5. Sign in to Your Office 365/Outlook Account
A new window will appear prompting you to choose the account you wish to connect. If your account is not listed, click on "Use another account" and sign in with your credentials.
6. Consent on behalf of your organization and accept the permission request
Follow the prompts to grant permission for Instantly to access your Microsoft account.
Make sure you click on the checkbox that says Consent on behalf of your organization
You may not see that additional checkbox depending on the account type and other settings in their Microsoft account.
You are all set! You may now proceed to enable warmup and create Custom Tracking Domain.
Watch this instructional video for a visual walkthrough of the process here