How can we help?
Full guides live on docs.mailg.io — install tips, FAQs, and how to reach us are below.
Contact & docs
Useful links
Documentation
Complete MailG for Gmail help center.
Installation
Marketplace install and Extensions → MailG for Gmail → Start.
Mail merge tutorial
Template, preview, test, send or schedule.
Troubleshooting
API errors, empty sheet, failed sends, tracking, quota.
Pricing
Plans, daily limits, and checkout.
Free tools
Spam checker, Gmail aliases, signature generator, and more.
Privacy
How we handle your data.
Terms
Terms of Service for MailG.
Help FAQ
How do I install MailG?
Install from Google Workspace Marketplace, then open Extensions → MailG for Gmail → Start. Full steps: https://docs.mailg.io/getting-started/installation
Where is the full documentation?
Everything lives at https://docs.mailg.io — start dialog tour, templates, tracking, send pacing, quotas, and more.
Why do I need to set Script Properties?
For self-hosted or custom deployments, APP_URL and APP_API_KEY connect the add-on to the MailG API. Marketplace installs are preconfigured when published.
Emails are not sending
Check your daily quota in the sidebar, confirm Gmail permissions were granted, and make sure the recipient column contains valid emails. Step-by-step: https://docs.mailg.io/help/troubleshooting — FAQ: https://docs.mailg.io/help/faq
How does billing work?
Upgrade from the pricing page with the same email as your Sheets Google account so entitlements unlock correctly. Details: https://docs.mailg.io/help/account-and-billing