It’s not always straightforward to send HTML emails. This tool was made to fill that specific gap. This online version isn’t functional out of the box, since it needs to be configured with your own email credentials and hosted on a standard PHP server. But you can download the source code from my GitHub and use or modify it as you see fit.
Once set up, the first thing you’ll need to do is define the list of recipients. Use the first section below to add one or several email addresses, separated by commas. Clicking the "Add" button will submit the emails and add them to the list of future recipients. Duplicate addresses are filtered out. Uploading a .csv file is a work in progress.
Use the last section to write your message or HTML email. Since there’s no preview feature, it’s recommended to build your email in a text editor and paste the full code when you’re ready. Hit "Send" to deliver your message. A confirmation box will show up, telling you whether the email was successfully sent.