If the .zip is over 20MB, consider using a link (Google Drive, WeTransfer, Dropbox) instead of a direct attachment to avoid it getting stuck in spam filters.
Depending on who you are sending this to, here are three ways to "put together a solid text": 65032_HD.zip
Option 1: Professional & Direct (For a client or supervisor) Final Assets: 65032_HD.zip Hi [Name], If the