Hi there! We are having another issue as well with the Subscribe by Email plugin. It was working fine and then since last week, it’s been sending out duplicate emails for every post.
See this screen shot of the logs:
http://screencast.com/t/swNZkb7In
Not sure how to fix it, but it’s starting to frustrate my members so I thought I’d check with you guys.
You have access btw already on another ticket if you need it.
Thanks so much