Hi [First Name],

Ten years. That's the real thing — long enough to have lived through every market cycle, every product change, every "this is the year" we've ever had, and to still be here, still doing it well.

People who hit ten don't get there by accident. They get there because they actually care about the work, because they've earned trust the slow way, and because their clients know it. You're one of those.

Thank you for a real decade. Here's to the next one.