What kind of marketing emails do people actually like getting?

I’ve been thinking about this a lot lately while researching customer engagement.

Some brands send emails that genuinely feel useful, while others just flood inboxes with constant promotions. Reading about different Types of Email Marketing Campaigns made me realize how important intent and timing really are.

Found a thoughtful breakdown in the latest post by Pulse of Strategy. Should be easy to find from their profile.

What makes you stay subscribed to a brand’s emails?