[net.mail] Help in using UUCP gateways

sandyb@marque.UUCP (Berger) (05/01/86)

I am fairly new to USENET/UUCP networking. I would like to be able to send
mail to a wider audience then I currently can. I am familiar with sending
mail to other UUCP sites but am a bit confused when it comes to specifying
an address of a non-UUCP (bitnet, csnet, DECnet) site. If I understand it
correctly, a gateway is a node on a network from which you can access other
networks. For example, seismo is a gateway to the arpanet. I know a path from
my system to seismo. How do I specify an arpanet address? Another example:
I believe that harvard is a gateway into the csnet world. The path from here
to harvard is: uwmcsd1!uwmacc!uwvax!harvard   I want to reply to a message from
username@QUCDNEE1.BITNET   What do I use as an address?  What about DECnet?
I have a path to decuac which I believe is a gateway. Their mail specifications
are node::user. What do I use?

Secondly, what about the inverse? If I address a mail to a csnet only site,
what do I tell him my csnet address is? I only know my UUCP address. Any help
here would be MOST appreciated.

Sorry if this is not the place to post this message. Like I said, I'm fairly
new to all this.

Sanford L. Berger
Marquette University
Computer Services Division
Milwaukee, WI

UUCP:	...!seismo!uwvax!uwmacc!uwmcsd1!marque!sandyb

avolio@decuac.UUCP (05/02/86)

In article <415@marque.UUCP>, sandyb@marque.UUCP (Berger) writes:
> I am fairly new to USENET/UUCP networking. I would like to be able to send
> mail to a wider audience then I currently can. I am familiar with sending
> mail to other UUCP sites but am a bit confused when it comes to specifying
> an address of a non-UUCP (bitnet, csnet, DECnet) site. 

DECnet is a product.  What you mean is DEC's internal network which
happens to be DECnet based.  (This is commonly referred to as the Enet
for EasyNet -- formerly Engineering Net.)

In general a gateway from UUCP to another network should handle From_
lines in the form host.domain!user.  So, in your examples, you would
send mail to ...!seismo!host.arpa!user or ...!decuac!node.DEC.COM!user
(for an address someone gave you as node::user)

> Secondly, what about the inverse? If I address a mail to a csnet only site,
> what do I tell him my csnet address is? I only know my UUCP address. Any help
> here would be MOST appreciated.

The inverse should work, although they have to use their own (in some
cases convuluted) addressing.  So from inside DEC one might write to
you as decuac::"sandyb@marque.UUCP" or 
-- 
Fred @ DEC Ultrix Applications Center
INET: avolio@decuac.DEC.COM          UUCP: {decvax,seismo,cbosgd}!decuac!avolio

broman@noscvax.UUCP (Vincent P. Broman) (05/05/86)

Many address paths through gateways can be specified by a mixture of
address ::= address@host.domain
address ::= uucpsite!address
productions. Mixtures of the two syntaxes must be interpreted in the correct
order by the intermediate mailers, and I don't how universally that will happen.

Examples ---

I am on a machine with both ARPA and UUCP access. Seismo is another. My mail to
ihnp4!person@seismo.arpa goes to seismo first and then to ihnp4.
Person could reply to seismo!me@nosc.arpa . Since ihnp4 is not on ARPANET,
"me@nosc.arpa" is just a complicated name for an addressee at seismo,
delivery to which is taken care of by the mailer at seismo.

I can send CSNET mail to someone%foo.csnet@csnet-relay.arpa, so that
ihnp4!person would write to seismo!someone%foo.csnet@csnet-relay.arpa .
This would take the path ihnp4 -> seismo -> csnet-relay -> foo .
The return address would look something like ihnp4!person@seismo because
csnet-relay recognizes the '@' to mean ARPANET.

BITNET mail through wiscvm.arpa should be somewhat similar.

Mailnet addresses go through mit-multics and look like:
colleague%durham.mailnet@mit-multics.arpa who replies to
me%nosc.arpa@mit-multics .
Simile brit%machine.janet@ucl-cs.arpa who can reply to me%nosc.arpa@ucl-cs .

DECNET (ENET) mail to machines is more complicated, I think, but often some
kind of externally understandable name is available like:
decperson%hismachine.dec@decwrl.arpa which gets translated along the way to
their internal system of names. Decperson would reply to
RHEA::DECWRL::"user@host.arpa" . One might hope that one could substitute
ihnp4!person for user, for instance, since decwrl does talk uucp to ihnp4. Only
the '!' might not be a legal character.

I do not know how many machines will gateway between arpanet and uucpnet,
but ucbvax, sdcsvax, seismo, and harvard do. Purdue and Ucl-cs do not,
even though they are accessible from both nets under the same name.
(i.e. ucl-cs.arpa == ucl-cs.uucp, etc)  I have a list of 30-40 other machines
that Might gateway, but I've only tested a portion of them by use.
If anyone has hard information about that, tell me!


Vincent Broman, code 632,  Naval Ocean Systems Center, San Diego, CA 92152, USA
Phone: +1 619 225 2365     Starship: 32d 42m 22s N/ 117d 14m 13s W
Arpa: broman@bugs.nosc.mil Uucp: {floyd,moss,bang,gould9,sdcsvax}!noscvax!broman

avolio@decuac.UUCP (05/08/86)

In article <453@noscvax.UUCP>, broman@noscvax.UUCP (Vincent P. Broman) writes:
> DECNET (ENET) mail to machines is more complicated, I think, but often some
> kind of externally understandable name is available like:
> decperson%hismachine.dec@decwrl.arpa which gets translated along the way to
> their internal system of names. Decperson would reply to
> RHEA::DECWRL::"user@host.arpa" .

Please see my previous note on this for a more accurate rendering of
thst state of things.  Also see Richard Johnsson's note about .DEC.COM
domain and gatewaying of mail.  

To make a long story long, from the Arpa internet, user@host.dec.com
should work and if it doesn't, your mail software should be smartened
up to handle domain servers, etc.  From UUCP, mail to
....!{decwrl,decuac}!host.dec.com!user is correct, although the other
forms will still work.
-- 
Fred @ DEC Ultrix Applications Center
INET: avolio@decuac.DEC.COM          UUCP: {decvax,seismo,cbosgd}!decuac!avolio