Overview

Mailmeteor was founded in 2015 and is headquartered in France. It is a dedicated mail merge and email tracking tool built exclusively for Gmail and Google Workspace. Mailmeteor uses Google Sheets as its data source, allowing users to send personalized bulk emails directly from the Gmail interface while tracking opens, clicks, and bounces in real time.

As a native Gmail add-on, Mailmeteor requires no SMTP or API configuration — install the Chrome extension and start sending. It is designed for sales outreach, cold email campaigns, newsletter distribution, and re-engagement sequences, with a daily sending limit of up to 2,000 emails. As of 2026, Mailmeteor has served over 500,000 users and maintains top ratings among Gmail mail merge tools.

Key Strengths

  • Native Gmail Integration: Mailmeteor runs as a Chrome extension fully embedded in the Gmail UI. Users can edit templates, fill variables, send batches, and track results without leaving Gmail — minimal learning curve. See Cold Email Tools Comparison.
  • Google Sheets-Powered Personalization: Connect Google Sheets to auto-populate recipient name, company, title, and other fields. Variables are dynamically inserted into email body and subject lines, enabling one-to-one personalization at scale for higher reply rates.
  • Built-in Email Tracking: Open, click, and bounce events are automatically tracked and displayed directly in the Gmail Sent folder. Users can see at a glance who opened, who clicked, and who bounced — no separate analytics platform required.
  • Privacy-Compliant Design: Emails are sent through the user's own Gmail account; Mailmeteor does not store email content. Only tracking metadata (open time, location, etc.) is stored on the server, complying with GDPR and privacy requirements.
  • Flexible Send Scheduling: Supports scheduled sending, auto-pausing bounced recipients, and daily send limit controls. These features help users maintain a healthy sending rhythm and reduce the risk of Gmail spam flagging.

Product Ecosystem

Mail Merge

Mailmeteor's core feature is mail merge, supporting data import from Google Sheets with {{variable}} syntax for dynamic field injection into email body and subject lines. It supports conditional logic (insert content only under certain conditions), personalized attachments (different files per recipient), and multi-step follow-up sequences.

Email Tracking

Tracking capabilities include: open tracking (detects when and on what device a recipient opened an email), click tracking (monitors link clicks), and bounce detection (auto-identifies hard and soft bounces). Tracking data is presented in visual charts and can be exported as CSV.

Follow-up Sequences

Mailmeteor supports automated follow-up sequences: if a recipient does not reply within a set time, the system automatically sends a pre-written follow-up email. Follow-ups support personalized variables and A/B testing to optimize outreach conversion rates.

Template Library

A built-in template library covers common scenarios including sales outreach, networking, meeting invitations, and customer follow-up. Users can apply templates and customize variable fields, reducing the effort of writing from scratch.

Limitations

  • Gmail-Only: Mailmeteor only works with Gmail and Google Workspace — it cannot be used with Outlook, ProtonMail, iCloud Mail, or other email clients.
  • Not an SMTP Relay: Mailmeteor is a Gmail add-on, not an SMTP relay platform. It does not support programmatic email sending via API or SMTP. For transactional email scenarios (verification codes, notifications), use SendGrid or Amazon SES.
  • Sending Limits: The free plan caps at 50 emails/day; paid plans max at 2,000 emails/day. For high-volume sending (10,000+ per day), this may be insufficient.
  • Google Policy Risk: Bulk sending must comply with Google's anti-spam policies. High-frequency or low-quality bulk sending may result in Gmail account restrictions or suspension.

Use Cases

  • Cold Email Outreach (★★★★★): Mailmeteor's sweet spot. Personalized variables and follow-up sequences make it highly effective for sales development and partner outreach. See Email Service Selection Guide.
  • Newsletter Distribution (★★★★): Suitable for small to mid-sized newsletter campaigns. Combined with template library and tracking analytics, it enables a quick newsletter workflow.
  • Meeting Invitations & Follow-ups (★★★★): Send personalized meeting invitations in bulk with automatic follow-ups for non-responders. Ideal for event organizers and business development.
  • Programmatic Transactional Email (★): No API/SMTP integration available. For these needs, use dedicated platforms like Mailgun.

Pricing

Plan Monthly Features
Free $0 50 emails/day, basic mail merge
Starter $19/mo 500 emails/day, email tracking, follow-up sequences
Pro $29/mo 2,000 emails/day, template library, A/B testing
Business $49/mo 2,000 emails/day + team collaboration, priority support

Note: Annual billing saves 20% on all paid plans. Pricing subject to change — check the official website for current rates.

FAQ

  • How is Mailmeteor different from regular SMTP email services? Mailmeteor is not an SMTP relay or email infrastructure — it is an application-layer tool on top of Gmail. It uses your existing Gmail account to send emails, providing personalized bulk sending capabilities and tracking analytics, not underlying email delivery infrastructure. For programmatic transactional email, use a dedicated Transactional Email API solution.

  • Will Mailmeteor emails be marked as spam by Gmail? When used responsibly — controlling send frequency, maintaining a clean recipient list, and having valid DKIM/SPF records — Mailmeteor emails are indistinguishable from regular Gmail messages. However, high-frequency sending or targeting low-quality lists may trigger Gmail rate limits. See Email Deliverability Best Practices.

  • Does Mailmeteor support personalized attachments? Yes. Pro and above plans support sending different attachments per recipient, sourced from Google Drive or local files. The free plan does not support personalized attachments. See Email Template Design & Development.

  • How does Mailmeteor handle data security? Mailmeteor uses OAuth 2.0 to authorize Gmail access, requesting only send-mail and read-tracking-data permissions. Email content is sent through your own Gmail account; Mailmeteor servers store only tracking metadata, which is encrypted at rest. The service complies with GDPR requirements. See GDPR Compliance Checklist.