Lotus Notes Encryption

["ullmic6 () web de" <ullmic6 () web de>]

Hello everybody,

in my company we are using Lotus Notes/Domino R5 as mail tool. Even if 
the encryption is proprietary and just 64 bits I like this feature very 
much because it keeps the casual inside attacker from sniffing my mails. 
But now something interesting happened. Encrypted mails that I sent just 
disappeared. The explanation I got was: I have a subset of the domino 
directory (which is on the server and which includes the public key of 
the recipients) on my pc (called dircat). This local dir does not 
include the public keys due to size and performance for mobile users. In 
this scenario my Lotus Notes client does NOT download the public key 
from the server directory and encrypt the message. Instead it just sets 
a flag that this mail must be encrypted, sends it unenecrypted to the 
server and tells the server to do the encryption. My encrypted mails 
disappeared because these recipients public keys were missing on the 
server. My problem here is that I want end-to-end encryption. I do not 
want to delegate the encryption to a server (even if I hope that port 
encryption is enabled like defined in our policies). Does anybody on 
this list know if the encryption process really works like described 
above. The infos on Lotus encryption on the web and in IBMs redbooks is 
to unspecific to explain what's really going on here.

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<- ullmic ->