I've been given the task of searching our company emails for emails that were sent to 10+ recipients, to check for accidentally included mailing lists.
I've checked all the documentation I can find about how search works in Gmail and I can find many articles talking about how to filter by specific recipients, but none of them cover how to search based on the number of recipients.
Does anyone know how this can be done?
Maybe something like:
to: * AND * AND * AND * AND * OR *
to:(qty > 10)