Hi @all,

is there a simple way to proof, that a message and the attachment was delivered to the recipient? It would be much better if the recipient has to confirm, that the message arrived and he has read it.


Attachment: smime.p7s
Description: S/MIME Cryptographic Signature

RT 4.4 and RTIR training sessions, and a new workshop day! 
* Boston - October 24-26
* Los Angeles - Q1 2017

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