Multiple recipients in Mail - double messages to each address with different Reply-To - bug?? (OS 10.4, Mail 2.1.1)

[Jim Witte]

Hi,

   I just noticed an odd behavior that *I* at least consider a bug in  
mail.  I wrote a message and sent it to X, and CC'd it to address Y.   
X and Y are both Yahoo mailing lists.  What I get back when I check  
my folder from mail from X is *two* copies of the same message, both  
the same, but with different Reply-To fields (one of X and one to  
Y).  It seems to me that Mail should send out one message to X with  
reply-to of X , the other to Y with a reply-to of Y.  Either that or  
the RFC needs to change to allow multiple Reply-To, but that has  
great potential to create havoc - with postings really meant for only  
one list going to the other.  I'm subscribed to both, so I can just  
check both (except I'm about 500 messages behind on one of them..)

   Or it could be a preference (time to write my own email client - I  
need one too to just keep track better of all sorts of lists -  
replies to threads I initiate and replies to threads I've  
participated in would be VERY nice and I don't see a way to do it  
with Rules/SmartFolders except for running an Applescript on  
everything (or post-processing the mail with a Perl/etc script and  
then rebuilding the Mail database)

   Is this a bug/feature/personal-annoyance, or am I doing something  
wrong (or should I just not cross-post to lists)

Jim