It’s always important for homeowners to keep their letterbox key away from the letterbox. If it is possible to carry the key at all times, then do it. Simply carrying the letterbox keys with you enables you to protect and secure your letterbox significantly.
In addition, never leave the keys inside your home as criminals can easily find them no matter how well you hide the keys. Leave the keys on someone you really know and trust, like a family member, friend, or neighbors. This way, you can quickly access your letterbox whenever you need to check your emails.