[Standards-JIG] Re: Syntax for forwarding messages

Stephen Marquard scm at marquard.net
Thu Jan 20 05:11:56 UTC 2005

> In article <82777bea05011014364165ed89 at mail.gmail.com>,
>  Joe Hildebrand <hildjj at gmail.com> wrote:
>>It's just ask stpeter nicely to add type='oto' and type='ofrom' to JEP-33.

Peter Saint-Andre wrote:
 > So 'oto' is the original "to" address and 'ofrom' is the original "from"
 > address?
 > /psa

Though please can we have some mechanism to detect & prevent forwarding 
loops, e.g. jid A is set to autoforward to jid B, which is set to 
autoforward to jid A.

There needs to be a forwarding history in the message (with each 
forwarding action adding a new entry) and/or a hop count. Servers should 
stop forwarding and bounce the message (or take other action) when the 
hop count exceeds a certain threshold and/or a forwarding loop is detected.

The email equivalent is to check the number of Received: lines (in most 
SMTP servers) or use unstandardised header extensions like X-Loop:.


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