Table of Contents
This updated guide explains how to Sending Mass Emails with Mozilla Thunderbird through clear steps, practical examples, and important checks that help prevent common errors.
this guide shows how you can send mass mail using Mozilla thunderbird and the Mail Merge Add-ons.
Step 1: Download and Install Mail Merge.
First you need to download Mozilla Thunderbird at: https://www. mozilla. org/en-US/thunderbird/
Next you download the Mail Merge add on: https://addons. mozilla. org/en-us/thunderbird/addon/mail-merge/

Then you run the file mozilla-thunderbird-31-4. exe and install according to the steps. After installing Mozilla Thunderbird, run the Mozilla Thuderbird application.
On the interface, select the Thunderbird menu and select Add-ons .

The Add-ons Manager tab appears, click the gear icon and choose Install Add-on From File.

Then the Select add-on to install dialog box appears, select the Mail Merge file downloaded at first (file name mail_merge-3.10.1-sm + tb. xpi). Next, click Install Now to install.

When the installation is completed, restart Mozilla Thunderbird.

Step 2: Create a Contact List.
You open the editor, for example, Microsoft Excel and create a list of recipient addresses including the accompanying information.
Example

Then you save the file in. CSV format
Step 3: Compose and Send Email.
Click Wirte a new message to open the compose interface.

In the To section you use the name function corresponding to the name in the csv file. For example, in the csv file, the mail name is EMAIL, so we enter {{EMAIL}}.
You enter the subject in the Subject and in the body of the message.

After composing, select File -> Mail Merge .

In Mail Merge you choose Sourve is CSV , D eliver Mode is Send Now , Format is HTML . In the File section, click Browse and select the CSV file saved in Step 2 . After setup is complete you click OK .

As such, Mail Merge will automatically send emails in turn to the emails in the CSV file.
So you have quickly sent a series of mail using Mozilla Thunderbird, from the next time if you need to send a mass mail you just need to create a list of people you need to send mail saved in CSV format and use Mozilla Thunderbird to send. Good luck!
FAQ
What is the easiest way to Sending Mass Emails with Mozilla Thunderbird?
Start with the requirements in this guide, then follow each step in order. Check the result after every major change so problems are easier to identify.
Can beginners follow these instructions?
Yes. The process is organized into practical steps, and you can repeat any step before moving forward.
What should I check if the method does not work?
Confirm your software or device version, permissions, settings, file format, and internet connection when the task depends on online services.
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