Ability to modify the frequency of email inbox quota warning messages

As a marketing professional managing client sites and emails on Spanel, it would be great to be able to change the frequency at which Spanel sends email quota warning messages.

Currently, it sends several warnings per day, which seems odd - it further "floods" the noted inbox that is nearing capacity.

1 per day would probably be sufficient...! But can understand why other users may wish to set this higher.