Whatever it is — the win, the milestone, the call you finally got — you earned this one.
Hi [First Name],
I heard the news. Couldn't let it pass without saying something out loud.
You worked for this. Whatever the outside world sees today is the result of a lot of stuff nobody else watched — the decisions, the long calls, the moments of "let's just keep going" when it would've been easier to coast. That's the part that matters, and that's the part I see.
Take the win. Be a little proud. You earned it.