But maybe not in the way you think.
“The only 100% certainty in email marketing is a subscriber cannot engage with an email they don’t receive.”
That’s a fantastic line and one you should be taking heed of. Really interesting insights / tactics from Alchemy Worx here some of which Spike clients are making some excellent revenue from. Spike have one client who sends up to six emails for some campaigns they run. Each email generates revenue and the frequency is based on the fact humans are great procrastinators and need a few reminders, and a deadline, to make a decision. Unsubscribe rates are very low for such campaigns and upping your frequency is definitely worth thinking about for your next promotion.