Relevant Product: Exclaimer Cloud - Signatures for Office 365
Scenario
When an email is sent from a shared mailbox, a signature is not added to the received email message.
Resolution
This occurs when this feature has not been enabled for your tenant. Please get in touch with the Sales team to have this feature enabled.
To generate signatures, Exclaimer Cloud aggregates data from the Active Directory, however,
- if the feature is disabled, then when Exclaimer Cloud performs a data synchronization, disabled mailboxes are not synchronized.
- if the feature is enabled, all users with a primary SMTP address are synced, even if they are disabled.
Caution: User accounts in the Azure Active Directory for shared mailboxes should not be disabled or deleted - this can lead to the deletion of both the shared mailbox and the user from Microsoft 365.
Microsoft 365 accounts that have been converted to a shared mailbox must not be blocked from signing in, as this will mark the account as being disabled.
Microsoft 365 accounts that have been converted to a shared mailbox must not be blocked from signing in, as this will mark the account as being disabled.