Create event invitation emails

I need an event invitation email for our June 24th product launch at Studio 9. Invite existing subscribers and past attendees. Lead with the headline that the first 50 who RSVP get early access, include date, time, address, a concise agenda, and a clear RSVP button to register. Check that the subject line reads well for mobile, the preview text uses the early-access hook, and the from-name is Marketing — send to the events segment only on Thursday at 10am.

Before I send this invitation to subscribers, make it easy for recipients to act: surface the early-access offer and RSVP button above the fold, put date/time/location in one short line, highlight who should come (product users, partners), and flag anything that will make a reviewer hesitate — ticket limits, parking, or entry requirements.

The draft invitation looks ready but the RSVP URL goes to last year’s event form and I don’t know who last edited it. I’m afraid we’ll miss registrations or upset people if we send the wrong link. What’s the most reliable next move to confirm the correct RSVP endpoint and prevent an accidental send while keeping our Thursday 10am cadence?

Every quarter we rush event invites and discover broken RSVP or ticket links after sending, costing registrations and trust. I want a habit that stops that pattern. What concrete pre-send checklist or small process change will catch link errors and ownership before we schedule a campaign, without adding bureaucratic delays?