MailBrother is a Gmail extension that allows you to create multiple emails and send them to as many recipients as you want. It is a Chrome extension that allows you to create the emails from your computer and add any images, videos, and other files you want. It's a complete tool for email marketing.

After installing it, you will have to log in to your Gmail account. You can send emails to different recipients and add images, videos, and other files to them. You can send one email at a time. All you have to do is select the recipients and click the “MailBrother” button to get your email marketing campaign started.

Now you can add people to your campaigns and use filters to get the data you need. You can also export the data you need into PDF, CSV, or TXT.