Mailmeteor

Mailmeteor is a Gmail add-on that turns your inbox into a mail merge machine. You write one email template, upload a spreadsheet of recipients, and it sends personalized copies with tracking, scheduling, and follow-up reminders—all from your Gmail account.

What it does

It integrates as a Chrome extension or Google Workspace add-on, reading recipient data from Google Sheets. Each email gets personalized fields (name, company, etc.), and you can track opens, clicks, and replies. Automated follow-ups trigger based on no reply, and all sends stay within Gmail's sending limits to avoid spam flags.

Best for

• Salespeople running cold email campaigns from their Gmail
• Recruiters sending personalized outreach to candidates
• Event organizers inviting attendees with custom details

Strengths

• Works entirely inside Gmail—no separate platform to learn
• Respects Gmail's daily sending limits to maintain deliverability
• Real-time open and click tracking with per-recipient analytics

• Mail merge from Google Sheets — Pull recipient data directly from a spreadsheet, personalize subject lines and body
• Open and click tracking — See who opened your email and which links they clicked, in real time
• Automated follow-ups — Set rules to send a second email if no reply within X days
• Send later scheduling — Queue emails to send at optimal times, with timezone detection
• Gmail-native interface — No separate dashboard; compose, send, and track from your Gmail inbox
• Campaign analytics — Dashboard showing total sent, opened, replied, and bounced rates