[CentOS-docs] Hijacking threads

Ed Heron wrote:
> I'd seen references to hijacking a thread but hadn't realized what that 
> meant.  I've looked at my sent mail headers and found a References: header 
> item.  Hadn't seen that before.  Is that what the list uses to tie threads 
> together?  I was naively thinking it was the subject that made it part of 
> the thread, but always thought that was a flimsy method.  D'oh!
> 
> I shall not do that again.  My sincere apologies.

We live and [hopefully) learn.  NP.

Phil