Guides
Mail merge guides for people who send from Gmail
Long, plain guides to the things that trip people up, with Google’s own numbers and links to where they come from. Written by Ashutosh Dubey.
How to mail merge in Gmail: four ways, and which one fits
Four ways to run a mail merge from Gmail: Google’s built-in merge, Apps Script, add-ons and web apps. Steps, limits, trade-offs and a checklist.
Read the guide 11 minGmail sending limits in 2026: personal Gmail and Google Workspace
The official Gmail sending limits: 500 emails a day on personal Gmail and 2,000 on Google Workspace, what happens if you go over, and how to plan a list.
Read the guide 12 minHow to send a mail merge with attachments from Gmail
Send a mail merge with attachments from Gmail: the same file for everyone or one per person, size limits, blocked file types and when to send a link.
Read the guide 10 min