You can upload content to be sent by going to:
Mailings Tab > New > Upload a File
Uploading the File
ZIP File Imports
Zip File imports simply the process of uploading a single HTML file and its accompanying images. Senders that work with designers are often provided with a Zip file containing the HTML file, and it's accompanying images. When you upload a ZIP file to ReachMail, we automatically import the images for you, and make the appropriate adjustments to the HTML to reference the image URLs not hosted in our networks.
Only local images (those contained in the ZIP file) are handled. Images reference in the HTML that are already hosted online will not be altered.
Requirements of a Zip File Import
Please ensure that the ZIP archive contains only one HTML file.