Not Valid solution

Hello!
as i can see from the first view, you fetched the emails and kept the synced data using corn jobs, which is not a valid solution for a real-life email client application
please find a better way (and test it), to ensure the data is always synced
use case you could have 10000 email accounts that are syncing the data (near realtime/ realtime is the most important part of the sync process)