[Mailman-Users] strange problem

[Carl Zwanzig]

On 3/13/2013 8:01 AM, Bruce Harrison wrote:
> All of a sudden it seems that mailman is adding an address to the CC
> field.  It's a bad address, of the form xxxxxx at mailman.utm.edu (this is
> our mailman box).

Are you sure it's mailman? Unless there's some rewriting going on, that's 
done by the MUA.  Could be new users or new mail clients mangling the header 
when replying.

z!