Unable to decrypt the encrypted field: mail.protocol.password in adaptor: emailReceiver

1) Remove the encrypted="true" attribute.

<property encrypted="true" name="mail.protocol.password">encrypted-password</property>

2) Insert the plain-text password as the value..

<property name="mail.protocol.password">plain-text-password</property>

3) Just, save the deployment file.. Then, DAS will encrypt using the new keystore and entry will looks something like below..

<property encrypted="true" name="mail.protocol.password">encrypted-new-password</property>