Why is sendmail in the core of FreeBSD?

[Gabriel Dragffy]

Just been wondering about this. If you do a standard install of  
FreeBSD it includes things such as a basic FTP daemon, all the  
various utilities such as df, ls, etc. SSHD etc. I assum these are  
all in FreeBSDs core, as developed in the same CVS repo. Having read  
the mails on this list for several weeks it seems obvious that most  
people regard Postfix or EXIM to be the best MTAs, so I'm wondering  
why is sendmail the MTA that is integral to FreeBSD? Wouldn't it be  
ace to have the default one be Postfix or something?

Regards

Gabe