Assuming you are familiar with Microsoft Word’s Mail Merge feature, you may realize that when you are ready to send your email, the option to send your merge emails is not available or greyed out. This document addresses how to solve this issue.

1. First, launch your MacOS “Mail” client. Then go to “Mail” in the top left, and go to Settings.
2. From Mail settings, change your default mail client from “Mail” to “Microsoft Outlook”.
3. Then, go back to your document, the Mail Merge E-Mail button should now be available.
4. If it still is not available, you may need to save your document somewhere and/or restart Word before using Mail Merge.