An error occurred while saving the commentKent Olsson commented
I've figured this out.
When you add a shared mailbox as recipient for an alert in a document library. The shared mailbox gets an email alert that someone has subscribed that mailbox for alerts.
So far so good.
But then, when changes is done to the library, no alerts gets sent to the shared mailbox.
Then I started thinking... .what mechanism does this... I presume its some function that has been hanging along since early sharepoint.. 2007
Might it be that the user/mailbox has to be added to the site for a lookup of the mail alert job?
And thats just IT.. It has to be added to the site.
The mailbox/account has to exist in the hidden user list
This list is used for various lookups by sharepoint.
Just add the shared mailbox to the visitors group, and thats it... user now resides in the hidden user list for lookup and alerts will finally be delivered to the shared mailbox.