Dynamically resolving recipients to retrieve public keys during send/receive

摘要: Systems and methods are disclosed that facilitate identifying messages generated on a mobile device while the is offline as requiring encryption, storing in message outbox with flag indicating encryption required, recipients of flagged to generate recipient list. The list can be piggybacked server synchronization request when enters period online activity, return public keys associated identified permit an component, such secure/multipurpose Internet mail extension protocol (S/MIME) encrypt messages.