I've somewhat convinced myself that someone in the postal service is leaking information about pending parcels to scammers (or the scammers have access to some

I've somewhat convinced myself that someone in the postal service is leaking information about pending parcels to scammers (or the scammers have access to some servers). Whenever I'm expecting a package the number of phishing attempts in my email skyrockets. Period of no packages - a lot less attempts. Waiting for a new package? Phishing emails ramp up again.