For various reasons we would like to see 'live' samples of emails being sent out at the time of send.
To be clear, this is not the same as the testing functionality or the existing seeding functionality, this would effectively involve selecting a nominal number of live emails and BCCing it to a nominated email address.
For example, we might choose to send the first ten emails to a nominated inbox as well as to it's intended recipient.
I would envision this as part of the email template build where a developer can nominate the sample size along with the destination email address.