Re: The issue of mime parsing

Rickard:
>> To negotiate encryption on the "notification level" seems more
>> complicated than to negotiate a transfer encryption when the
>> receiver contact the storage to fetch a part.

clemens:
> this is tempting as the delivery of message parts can be
> de-coupled, but the sender may already have specified details of
> the encryption. but we need both:  senders must be able to do this,
> and receivers must be able to re-negotiate.

I do not understand. Why do the sender need to specify details
of the encryption on beforehand? Why can't the sender just be
satisfied knowing that each time a receiver connects to his server
to fetch data, it will negotiate a suitable encryption for that
session?

//Rickard