Support processing Old Email that is not created as a Request yet

The current behaviour for JIRA ServiceDesk Email Settings(Mail Handler) is to "Read/Pull" an "Unread" messages that were inside the Mail Box. After it is being pulled it will be set as Read and the emails is converted as Request in the JIRA ServiceDesk Project. As mentioned in the documentation:

After the email channel is set up, JIRA Service Desk will take note of when it connected to the email account for the first time. Any new messages sent to your inbox after that time will be pulled in as new requests or comments. Customers will receive email notifications about the details of their requests. For information about notifications, see Configuring JIRA Service Desk notifications. Messages that already exist in your email account are not processed. 

But, there is still possibility that one of the new email is already "Read" before JIRA ServiceDesk pull it making it is not being created as a Request. Hence, just like the Standard JIRA Mail Handler where it will scan the Mail Box as it is configured and it will created any emails as JIRA Issue if the issue is not exist yet, it would be great that JIRA ServiceDesk Email Settings(Mail Handler) have the same features like Standard JIRA Mail Handler.

Additional request:

Make a way so that when a user is adding a Service Desk Channel, they are able to specify their own PULL_FROM_DATE rather than by default use the date that the Channel is created.

Workaround

Support engineers - with the approval from Senior Support Engineers - can request an SQL update of the customer's email connection db table (once the date/time and approval has been provided from the customer) to change the pull-from-date field value to an earlier time to make sure customer's unread emails prior to their email channel reconnection can get processed.