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In the envelope settings you can configure the email notification settings and the agreement configuration. 
Additionally it is possible to configure the sealing certificate for the envelope. For more information please see Custom Sealing Certificate (since 23.49)
The agreement configuration is controlling if (and which) agreement texts are presented to signers and PKCS7 signers, after authentication in case an authentication method is configured. Please consider that agreement configurations are valid for signer activities only. In case of other activity types such as "Copy Recipient" or "Must View" activitesactivities, the acknowledge dialog is not displayed.
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