Add a phone number as a calendar guest. They get a text with a one-tap Add to Calendar link. When they accept — their RSVP and email come back to you automatically.
Free to start · No credit card · Works with Google, Apple & Outlook Calendar
Everything happens inside the calendar app you already use.
In Google, Apple, or Outlook Calendar, add 5551234567@maeil.cc as a guest — using any US phone number.
The recipient gets a text with the event details and a one-tap Accept/Decline link.
When they accept, they enter their email once. You get their RSVP with their real email — ready to add to your event's guest list in one tap.
Works with Google Calendar, Apple Calendar, and Outlook. No plugins or integrations needed.
Only enrolled accounts can send invites. Phone reputation checked at signup. STOP handling built in.
SMS arrives within seconds via Twilio's A2P 10DLC network — the same infrastructure used by major brands.
Power adds MCP & personal API access, so Claude or any MCP assistant can send invites and capture the reveal in-conversation. A real-time email notification the moment someone accepts comes with it.
Recipients can opt out at any time by replying STOP. They choose to share their email. No surprises.
Every send and every reveal is logged in your dashboard. See who accepted, who declined, and when.
You don't need an app to use maeil — but iPhone users get the smoothest experience with one. Invite someone straight from the Share sheet, a Shortcut, the Action Button, or Spotlight, and let maeil do the rest in the background.
The biggest win: when they accept, maeil hands you their revealed email already paired with their number. One tap saves it to their contact card — or creates a new contact if you don't have them yet.
Share a contact or phone number to maeil, or trigger it from a Shortcut, the Action Button, or Spotlight — no calendar typing required.
maeil sends the invite and watches for the RSVP without you keeping anything open. The reveal lands the moment they accept.
The iOS app is built and on its way. Join the waitlist and we'll tell you the moment it's live.
maeil isn't just a consumer app. The same phone-number-to-email bridge is a REST API and an MCP server — so any calendar tool, CRM, recruiting platform, or AI agent can send invites programmatically and capture the RSVP.
POST a phone number and event details. Get back the accept/decline status and the revealed email address. One endpoint, one round trip.
Claude and other MCP-compatible assistants can call maeil as a native tool — schedule a meeting and capture the contact's email without leaving the conversation, even when all you have is their phone number.
Salesforce, HubSpot, Calendly, recruiting tools — if it can make an HTTP request, it can send a maeil invite and route the reveal back to your CRM automatically.
MCP & API access is included from Power up — personal use on Power; automation, webhooks & metered volume on Builder and Business. Custom limits — contact us.
Start free. Upgrade when you need more.
Personal plans (Standard, Power) bill annually; Builder & Business bill monthly and include a send quota, then $0.05 per send above it.
theirnumber@maeil.cc.theirnumber@maeil.cc as the guest. They get a text; you get their RSVP and email back.No credit card. Send your first invite and watch the email come back — before you commit to anything.
Get started free →maeil, operated by CB Industries LLC, sends transactional calendar invitations by SMS — never marketing or promotional texts. When an event organizer adds a person's US mobile number as a calendar guest, that person receives one invitation text with the event details and a one-tap link to accept or decline, plus at most one RSVP confirmation for the same event. Organizers confirm they have the recipient's prior permission to be contacted about scheduling, in compliance with the TCPA.
Message frequency is low — about one invitation per event plus at most one confirmation. Message and data rates may apply. Recipients can reply STOP to any message at any time to opt out, or HELP for help (or email maeil@cb-industries.co). Mobile numbers are never sold or shared with third parties or affiliates for marketing.
Full opt-in flow, exact message wording, and screenshots: SMS & Consent · Privacy Policy · Terms of Service