Gmail doesn’t have a mail merge feature by default. This article explains how to easily create and send a mail merge in Gmail, using Google Docs and an addon.
Thunderbird is a powerful email client. Learn how to harness its ability using the Mail Merge add-on with LibreOffice Calc.
Want to send mass email messages in Mozilla Thunderbird but don’t want it to look like spam? Here’s how to set up Mail Merge so you won’t have that issue.