Delaying of Exchange emails externally purposefully

We have Exchange 2016 on-premise installed with DAG. I would like to delay of 3-5 minutes all emails from our host to the external world. Could you please advice any solution? Currently sending directly from exchange to the world (Without any smart host) . We are using barracuda for email incoming spam control
Sudir LBAsked:
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timgreen7077Exchange EngineerCommented:
There is no way to delay this within Exchange, but if you found a smarthost that recieves the emails and delays it from the smarthost that may help. I don't know of a smarthost company or appliance to recommend. The Barracuda maybe able to achieve this if you get that setup as a smart and look through the settings. Natively this isn't achievable via Exchange,but smarthost company or appliance may assist.

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timgreen7077Exchange EngineerCommented:
Provided answer to author's question. Closing ticket unless reopened by author.
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