Articles in this category Sending Mass Emails Why Mass Emails? Mass emails are an indispensable tool for EngSoc's committees, clubs, and design teams. Through mass emails, messages can be sent to all recipients at once to convey important. They... Mail Merge for Windows Microsoft Windows: Step 1: Preparing the Email 1. Begin by opening Microsoft Word and going to Mailings > Start Mail Merge > E-mail Messages. Mail Merge for MacOS MacOS: Step 1: Preparing the Email 1. Begin by opening Microsoft Word and going to Mailings > Start Mail Merge > E-mail Messages.