YAMM is a mail merge tool for Gmail that allows users to send mass personalized emails in bulk directly from Google Sheets and Gmail. It has a high open rate and is suitable for personal and professional use, including outbound sales email campaigns, link building, parent-teacher communication, non-profit fundraising, Google form submission notifications, seasons greetings, and sending individualized download links to recipients. YAMM offers real-time tracking of opens, clicks, bounces, and responses, as well as the ability to segment contacts, send follow-up campaigns, create personalized subject lines, email body, links, images, and attachments, include one-click polls, and customization via HTML and CSS. It has a 4.8/5 rating on over 19,000 reviews and 10,000,000 installs in the Google Workspace Marketplace, and is trusted by 150,000 organizations. YAMM is built by a team with expertise in Google Workspace.