In some email I received from Andreas Siegert, sie wrote:
[...]
> ot: Old text record / free form text record (this is always the last tag)
> st: Original senders time stamp
> si: Original senders ip
> sk: Original senders key (whatever this turns out to be)
> sh: Original senders hash of the message it sends
> fi: Forwarders ip (there mitght be multiple)
> ft: Forwarders time stamp
> fk: Forwarders key (whatever this turns out to be)
>
> Each tag is preceded by a space and there should be no space after the colon.
> Apart from the free form record no field can have text that looks like a tag.
>
> maybe a bit simplistic...
See the ULM draft for a more complete picture of that nightmare.
Darren
