(OT) my duplicate postings SOLVED!

[Bill Campbell]

FYI, I finally figured out why my postings to this list and other
Mailman lists we host were coming out to filepro-list at celestial.com
as well as filepro-list at lists.celestial.com.

After digging through the Mailman source and mutt's documentation, it
became evident that the postfix mail program was rewriteing my To: and
Mail-Followp-To headers.  The masquerade_domains variable in the postfix
main.cf file causes rewriting our the outgoing headers.  Adding
!lists.celestial.com to this option prevents postfix from doing this.

I had not know before today that postfix rewrote these outgoing headers.

Bill
-- 
INTERNET:   bill at celestial.com  Bill Campbell; Celestial Software LLC
URL: http://www.celestial.com/  PO Box 820; 6641 E. Mercer Way
Voice:          (206) 236-1676  Mercer Island, WA 98040-0820
Fax:            (206) 232-9186

The law becomes the weapon of every kind of greed. Instead
of checking crime, the law itself is guilty of the evils it
is supposed to punish. -- Frederic Bastiat, The Law