[ljf]

Indeed - the most confusing for me are those that have a 'no reply' but then contain email addresses in the body of the email - yahoo do that for their groups.

There was a good article on no-replies on HN a while back, but I can't seem to find it.

[citruspi]

I think I found it - http://news.ycombinator.com/item?id=4558433

[ookware]

Excellent, thanks!