usr.sbin/sendmail/cf/KEY


Macro                                   Class
-----                                   -----
A       Internet relay                  --
B       BITNET relay                    --
C       CSNET relay                     --
D       domain name
I       --                              "Fake" (Internal) domains, i.e.
                                        UUCP, BITNET, CSNET.
N       --                              hosts registered with the NIC
R       UUCP relay host                 --
U       This host's UUCP name           UUCP aliases
V       None                            List of our UUCP neighbors
W       Host to forward to for $=W      UUCP hosts on $W
X       Host to forward to for $=X      UUCP hosts on $X
Y       Host to forward to for $=Y      UUCP hosts on $Y