From the Microsoft Dynamics GP blogs: Picking email accounts; Bootstrap error; Boot up mystery; SQL Server collation
How Does Microsoft Dynamics GP Determine Which Account To Use When Sending Emails?: Mariano Gomez, aka The Dynamics GP Blogster, asks and answers this question on his blog. He explained:
"One of the advantages of working with Microsoft Outlook is its ability to configure multiple email accounts. Recently, a partner was working with a customer that supports multiple companies, so as such, each employee has an email account per company supported.
"The partner was under the impression that Microsoft Dynamics GP ‘looked' at the mailbox for the email account opened at the time of sending an email, but came to the conclusion it wasn't the case as the customer could not get emails sent through a second email account."