I know MSI send marketo email has a maximum send of 200 at a time. But we'd like to limit it to something like 5 or less to discourage the use of the tool for mass emailing.
Is this possible? Has anyone figured out how?
I don't think there's a way to limit/reduce the # of MSI email sends. The maximum limit of sending a bulk MSI email to up to 200 records is actually the SFDC limit, and not the Marketo one. Marketo allows you to send to as many people as you can select from the list view in SFDC, which is 200.
You can choose to remove Bulk Send Marketo Email button all together from the page layouts which'll restrict sales users to be only able to send the MSI emails from the Sales Insights dashboard at the individual record level.
Thanks, Darshil. Oddly, in Dynamics our Send Marketo Email button does not work on the individual record level, it only works when viewing a contact or lead list. We are working to fix this issue and once we do, we will consider your idea to restrict the use of the feature.