I-D ACTION:draft-gahrns-imap-referrals-02.txt
Internet-Drafts@ietf.org Wed, 23 April 1997 14:05 UTC
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Subject: I-D ACTION:draft-gahrns-imap-referrals-02.txt
Date: Wed, 23 Apr 1997 09:45:12 -0400
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A Revised Internet-Draft is available from the on-line Internet-Drafts
directories.
Note: This revision reflects comments received during the last call period.
Title : IMAP4 Referrals
Author(s) : M. Gahrns
Filename : draft-gahrns-imap-referrals-02.txt
Pages : 9
Date : 04/22/1997
When dealing with large amounts of users, messages and geographically
dispersed IMAP4 [RFC-2060] servers, it is often desirable to distribute
messages amongst different servers within an organization. For example an
administrator may choose to store user's personal mailboxes on a local
IMAP4 server, while storing shared mailboxes remotely on another server.
This type of configuration is common when it is uneconomical to store all
data centrally due to limited bandwidth or disk resources. Additionally,
users may be frequently moved from one IMAP4 server to another because of
hardware failures or organizational changes.
Referrals allow clients to seamlessly access mailboxes that are distributed
across several IMAP4 servers or to transparently connect to an alternate
IMAP4 server.
A referral mechanism can provide efficiencies over the alternative
"proxy method", in which the local IMAP4 server contacts the remote
server on behalf of the client, and then transfers the data from the
remote server to itself, and then on to the client. The referral
mechanism's direct client connection to the remote server is often a
more efficient use of bandwidth, and does not require the local server
to impersonate the client when authenticating to the remote server.
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- I-D ACTION:draft-gahrns-imap-referrals-02.txt Internet-Drafts