ietf-smime
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Are certificates _required_ by the sender?

2002-05-08 02:26:19

Is the sender of an email required to have a certificate, or is it sufficient 
for the sender to have a copy of the certificate of the recipient? I am 
thinking of an automated system, where one party will always be the sender, and 
never receive emails. In addition, no signatures are required. Thus nobody will 
ever actually need the public key for the automated system. However, I?m 
uncertain if the sender can send S/MIME messages without having a certificate 
of it's own.

Thanks for your time
-Terry Tollisen

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