No harassing

It doesn’t matter if they match your ICP or not.
It doesn’t matter if they’ve added to cart or not.
It doesn’t matter if they opened your email or not.
Nobody likes to be harassed.

Consider the “new friend test”: If you wouldn’t message a new friend with the frequency or forwardness in your new campaign, don’t send the campaign.

Conversely, what would you send them?
Would you make it fun?
Would you make it shorter?
Would you make it a different format?
Would you send them a freebie?

The answer is rarely ‘harass them more’!