[comp.mail.elm] multiple spool messages to same computer

todd@ivucsb.UUCP (Todd Day) (03/04/89)

I am using elm 2.1.  One thing I just noticed is that if I send the same
message to
sitea!siteb!person sitea!person sitea!sitec!person

elm will generate a different message in the spool directory for each
person.  /bin/mail seems to set up a rmail to 
siteb!person person sitec!person
all going to sitea.  This makes only one message in the spool file.

Will 2.2 fix this?

 
-Todd Day-
Internet: todd%ivucsb.UUCP@anise.acc.com
    UUCP: {pyramid, ucbvax}!ucsbcsl!nessus!ivucsb!todd
   Other: todd@ivucsb.UUCP may not work yet.

syd@dsinc.UUCP (Syd Weinstein) (03/05/89)

In article <551@ivucsb.UUCP> todd@ivucsb.UUCP (Todd Day) writes:
:I am using elm 2.1.  One thing I just noticed is that if I send the same
:message to
:sitea!siteb!person sitea!person sitea!sitec!person
:
:elm will generate a different message in the spool directory for each
:person.  /bin/mail seems to set up a rmail to 
:siteb!person person sitec!person
:all going to sitea.  This makes only one message in the spool file.
:
:Will 2.2 fix this?
No,  and there is a reason behind this.

Unfortunately, many rmail's out there cannot handle more than
one address per message.  It's a shame, but it is so.  (Xenix
is one).

Thus as a 'least common demoninator' we split them.
Sorry.


-- 
=====================================================================
Sydney S. Weinstein, CDP, CCP                   Elm Coordinator
Datacomp Systems, Inc.				Voice: (215) 947-9900
{allegra,bpa,vu-vlsi}!dsinc!syd	                FAX:   (215) 938-0235

dws@cseg.uucp (David W. Summers) (03/08/89)

In article <88@dsinc.UUCP>, syd@dsinc.UUCP (Syd Weinstein) writes:
> In article <551@ivucsb.UUCP> todd@ivucsb.UUCP (Todd Day) writes:
> :I am using elm 2.1.  One thing I just noticed is that if
[...]
> :elm will generate a different message in the spool directory for each
> :person.
[...]
> :Will 2.2 fix this?
> No,  and there is a reason behind this.
> Unfortunately, many rmail's out there cannot handle more than
> one address per message.  It's a shame, but it is so.  (Xenix
> is one).
> 
> Thus as a 'least common demoninator' we split them.
> Sorry.
>
> Sydney S. Weinstein, CDP, CCP                   Elm Coordinator
> Datacomp Systems, Inc.				Voice: (215) 947-9900
> {allegra,bpa,vu-vlsi}!dsinc!syd	                FAX:   (215) 938-0235

Question:  Why not just add this as an option for sites where the 'rmail' 
CAN handle this?  I'm sure you have your reasons, but I'm curious to know what
they are.  Could you please elaborate on this?

   Please forgive me if this has been hashed out before, and direct me to 
someone who would know.

    Thanks!
    - David Summers
    (dws@cseg.uucp)

syd@dsinc.UUCP (Syd Weinstein) (03/08/89)

I am getting a lot of responses to this message I posted.
In article <88@dsinc.UUCP>, syd@dsinc.UUCP (Syd Weinstein) writes:
> In article <551@ivucsb.UUCP> todd@ivucsb.UUCP (Todd Day) writes:
> :I am using elm 2.1.  One thing I just noticed is that if I send the same
> :message to
> :sitea!siteb!person sitea!person sitea!sitec!person
> :
> :elm will generate a different message in the spool directory for each
> :person.  /bin/mail seems to set up a rmail to 
> :siteb!person person sitec!person
> :all going to sitea.  This makes only one message in the spool file.
> :
> :Will 2.2 fix this?
> No,  and there is a reason behind this.
> 
> Unfortunately, many rmail's out there cannot handle more than
> one address per message.  It's a shame, but it is so.  (Xenix
> is one).
> 
> Thus as a 'least common demoninator' we split them.

I have been getting this reply from a lot of people:

: How about putting a check in the configuration script to see if rmail
: can handle multiple addresses?

I wish the problem was that simple.

As an example, I send a message to a and b at site c.
If I pass it off to sites d,e and f first as
'rmail d!e!f!c!a d!e!f!c!b'
rmail at sites that can handle it will of course strip off one layer
of address and pass on the command.

However, if site f cannot handle it, you get
'rmail c!a c!b'  on site f
and f will return a bounce message saying
'no such user "c!a c!b"

Note, you don't know which intervening sites this could be.
If you don't program to the lowest common demon. you get screwed.

-- 
=====================================================================
Sydney S. Weinstein, CDP, CCP                   Elm Coordinator
Datacomp Systems, Inc.				Voice: (215) 947-9900
{allegra,bpa,vu-vlsi}!dsinc!syd	                FAX:   (215) 938-0235