To connect an Office 365 account to Reply:
First, go to Settings and choose the Email Accounts option from the left-side toolbar.
Use the red ‘plus’ button in the top right corner to add a new account.
In the pop-up window, select Office 365 email provider:
4. If you have not logged in to your Office 365 account before, a new window pops up enabling Microsoft OAuth authentication. Enter your email address and password, then click the Sign in button. Done!
In the Email Accounts list, you can now see the added account of OfficeSingleClick type. Link your new email account to a sequence or use it to send direct emails from Reply.
Note: If you are already signed in to your Office 365 account, the system redirects you to the new email account page in Reply without Microsoft OAuth authentication.