Fantastic mailing list software complete with double opt-in subscriptions, custom subscriber pages, custom templates, and batch processing.
The new version of PHP List (2.10.4) makes it easier to embed an image into your newsletter/mass mailing. Here's a video that walks through the process. Insert Image in PHP List
Here's some help on getting your Outlook (or other) contacts into PHP List. It's a bit complicated and the video assumes you know how to export your Outlook contacts into an Excel spreadsheet, but hey, here it is anyway. It assumes you already have your contacts in an Excel spreadsheet and have PHP List up [...]