On 3/11/05, daboo(_at_)isamet(_dot_)com (Cyrus Daboo) wrote:
Consider the case of a message with a small text part and a large
attachment. On your mobile device you might want to only read the text
without paying the penalty of downloading the attachment. If the message
data is unencrypted the client can use the IMAP protocol to download only
the text part. However, if the message is encrypted in one single
multipart/encrypted part, then the client has to download all the data in
order to decrypt and extract only the text.
...
Thanks for the clear explanation. While perhaps out of scope here, I certainly
hope that the link between the client and the IMAP server is secured. The idea
of a message that the sender thought needed to be encrypted, being sent out in
the clear, over a cell phone transmitter, is a bit disquieting.
Cheers - Bill
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