Requirements: Connection of an account to Ebsta requires Administrator rights in Ebsta and MS Office.
A service account can come disconnected if its configuration is changed or if the password is on a rotation policy. You will need to re-connect your service account to Ebsta if you receive an error message under your service account details by following the steps below.
1. Click Manage Account.
2. Click Office 365 OAuth or Exchange (on premise).
3. Input your Tenant ID and the email address of a user that you can test with, then click Connect.
To get your Tenant ID click on this link: https://portal.azure.com/#blade/Microsoft_AAD_IAM/ActiveDirectoryMenuBlade/Properties
or use the following Microsoft article :
4. Sign in as a Microsoft Administrator for the Tenant.
7. Click Accept to give Ebsta Permissions. The service account connection requests the scopes shown below.
8. Click Confirm.
9. Once successfully reconnected, the error message will disappear and be replaced by a green connection symbol.
10. Mailbox Restriction (optional)
If you would like to restrict access to specific mailboxes you can follow the steps here:-