Similar to scheduling the time of an email in Outlook (see attachment), permit the Esploro letters administrator to set a time delay for when letters are sent.

Our use case is as follows:
When we enter new theses, it can take up to 15 minutes for them to be available via the public portal after record 'Approval'. If enabled, a Deposit Status Update Letter is sent to the author immediately on 'Approval'. If the author opens up their letter straight away, they are presented with a dead link. We have disabled the Deposit Status Update Letter as a result.
If a time delay function could be configured for the Deposit Status Update Letter, and delay delivery of this letter for 20 minutes after new record 'Approval', authors would never again be presented with a dead link. This would allow us to enable this letter and thus provide a useful service to authors.