Why it works
Most standup time is spent on "what I did / what I'm doing" — the part everyone already knows. Blockers are the only part that actually needs the group. This strips the ritual down to the one signal that matters, and the fixed prompt makes it safe to send byte-for-byte every day. The fresh content is whoever's stuck this morning, not the email.
Make it yours
Send it 30–60 minutes before you start your own focused work so you have time to unblock people. If your team is bigger than ~8, route replies to a channel instead of reply-all.