If the bounce is generated by ESA, few features do support modification to SMTP response code. Explore the mail flow policy as an e.g. and you should see that the response code fields/value can be changed (though I dont see a see a specific use case ...

ETD at the moment supports integration using API and allows a list of API calls to me made. If thats not what you are looking for, then no it probably doesnt.

There's a generally a default waiting period (not on top of my mind), after which the instances are deleted from our systems. I believe we also have ways to recover upon removal (with in a stipulated time) beyond which we no longer can. You might wan...

Our recommendation is not allow it go to 99% because it can have unforeseen negative impact to certain services like quarantine. SMA is possibly receiving more emails to quarantine compared to how many emails are eligible to be deleted. Review your c...

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