I’ve been working some on Courier recently, and am on the verge of a new, fairly major, release. In the new version you will see:

• The ability to map Courier users to WordPress users
• Queueing support
• Statistics on subscriber base changes

The biggest problem I’ve been having so far is getting WP Chron to work. It doesn’t seem to fire, meaning that no e-mails are sent. I’m also worried about ensuring that all e-mails are sent — in the current system, you’re presented with a list of all the e-mails sent and whether they succeeded or failed. With queueing, it’s harder to verify that all the e-mails went out.

I’ll most likely be attending WordCamp this Saturday, and hopefully I’ll have the chance to ask some people smarter than me what I’m doing wrong.