At 7:53 PM -0700 9/9/02, Geoff Canyon  imposed structure on a stream 
of electrons, yielding:

>So the question is: why isn't the domain itself sufficient to
>differentiate the two accounts?
>
>It sounds as though on the SMTP end, it is: mail comes in for
>[EMAIL PROTECTED] and [EMAIL PROTECTED], and the SMTP server knows
>enough to store the mail separately based on the different domains.
>
>But the POP3 server doesn't have access to that information?
>[EMAIL PROTECTED] logs in to get his email, and the POP3 server
>doesn't have any way of knowing whether is fred from firstdom.com or
>fred from seconddom.com?

Because the design of POP3 is that the user logs in with an account 
name, not an email address. Traditionally this meant you used  the 
'local part' of  your email address to log into a server that handled 
a single domain. This model has changed somewhat with POP3 servers 
that handle mailboxes whose addresses are in different domains, but 
there are still many POP3 servers that can't handle an @ in the 
account name used to log in and many multi-domain  mail systems that 
map all the mail domains into a single flat POP3  namespace, just as 
SIMS does.  A few have moved to POP3 namespaces that mirror the mail 
address namespace and require user@domain logins, but that's not 
extremely common

It would be nice to see SIMS  work a little more automatically with 
multiple domains, perhaps by pushing POP3 login names through the 
router so that users could log in with their email addresses 
(whichever working one they like) and get the right mailbox. It 
doesn't really strike me as a priority issue (I'd rather see a 
release version of 1.8 and complete current docs) but it sure does 
generate traffic here.
-- 
Bill Cole
[EMAIL PROTECTED]


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