buildworld fails w/ "unknown user smmsp"

Platform: i386

Hi:

 I get the following error when I attempt to make my kernel:

mmtree -eU  -f /usr/src/etc/mtree/BSD.root.dist -p /
mtree -eU  -f /usr/src/etc/mtree/BSD.var.dist -p /var
mtree -eU  -f /usr/src/etc/mtree/BSD.usr.dist -p /usr
mtree -eU  -f /usr/src/etc/mtree/BSD.include.dist  -p /usr/include
mtree -deU  -f /usr/src/etc/mtree/BSD.sendmail.dist -p /
mtree: line 10: unknown user smmsp
*** Error code 1

Stop in /usr/src/etc.
*** Error code 1

 I configured postfix a while back to replace sendmail. However I do
not see "smmsp" in either my /etc/group or /etc/passwd files. What
have I done wrong here?


                                          TIA,
                                          Jonathan