mark@drd.UUCP (Mark Lawrence) (06/01/89)
I'm looking for suggestions as to how to modify my sendmail.cf. My
questions are of a novice nature, so please don't clutter up the ng by
posting. I'd appreciate e-mail.
'drd' is the mailhost for a small lan and has a reliable uucp connection
to a local university which is on the Internet. I'd like to have all
mail with addresses which don't end in .uucp kicked across the uucp link
to the University for relay. It surely must be child's play for those
experienced in manipulating the contents of sendmail.cf, but some of the
stuff there (M4?) still stumps me. I'm running SunOS 3.5 with whatever
stock sendmail is provided with it. I'm allowing DD and CD default
to the yellow pages domain name which is 'drd'.
The sendmail.cf on drd has the following macros defined:
# major relay host (uucp name of University of Tulsa mailhost)
DRtusun2
CRtusun2
(I understand that DR defines a macro R which is referred to later on by
$R. I don't understand the purpose of CR, or for that matter, Canything)
# domain-spec for local domain within universe (eg, what domains are
# above?)
DUUUCP
CUUUCP COM
# major relay mailer
DMuucp
(uucp is defined as a mailer elsewhere
# Pertinent (I think) chunks out of Ruleset 0 (after addresses ending in
# .uucp are handled by passing off to #uucp mailer)
R$*<@$*$-.arpa>$* $#$M $@$R $:$1@$2$3.arpa$4 user@anything.arpa
R$*<@$*$-.bitnet>$* $#$M $@$R $:$1@$2$3.bitnet$4 user@anything.bitnet
Basically, I'd like to have all addresses which aren't local and aren't
.uucp forwarded via the #uucp mailer to $R.
Below is an excerpt from Ruleset 0 on a subsidiary machine. Do I want
to do something of the sort suggested there as far as how non-local
names are handled? I'd rather not have to put in a line for every type
of domain that I'd expect to have to handle.
################################################
### Machine dependent part of ruleset zero ###
################################################
# resolve names we can handle locally
R<@$=V.uucp>:$+ $:$>9 $1 First clean up, then...
R<@$=V.uucp>:$+ $#uucp $@$1 $:$2 @host.uucp:...
R$+<@$=V.uucp> $#uucp $@$2 $:$1 user@host.uucp
# optimize names of known ethernet hosts
R$*<@$*$%y.LOCAL>$* $#ether $@$3 $:$1<@$2$3>$4 user@host.here
# other non-local names will be kicked upstairs
R$+ $:$>9 $1 Clean up name, keep <>
R$*<@$+>$* $#$M $@$R $:$1@$2$3 user@some.where
R$*@$* $#$M $@$R $:$1@$2 strangeness with @
# Local names with % are really not local!
R$+%$+ $@$>30$1@$2 turn % => @, retry
# everything else is a local name
R$+ $#local $:$1 local names
Your suggestions and cogent explanations (and pointers to where I might
dig this stuff up for myself) would be welcome.
--
Hierarchical Earthers: lawrence@tusun2.knet.UTulsa.Edu
Flat Earthers: {...uunet!apctrc,...rutgers!okstate!romed}!drd!mark
Emailophobes: (918) 743-3013