'[Resent-]Sender:' headers

Hello,

I suspect procmail of inserting 'Resent-Sender:' resp. 'Sender:'
headers (with an incorrect address in my case) when processing
'! anyone(_at_)anywere(_dot_)de' recipes.

If true: How can I avoid this?

Thanks for any idea!

-- 
======================================================================
Hubert Palme         Bergische Universitaet-Gesamthochschule Wuppertal
                                      Computing  Center
                                      D-42097 Wuppertal
Email: palme(_at_)uni-wuppertal(_dot_)de             (Germany)
http://www.hrz.uni-wuppertal.de/hrz/personen/h.palme.html