STANDARD MAIL
Standard mail doesn't come with tracking, so you can't verify when or if the mail has been delivered.
No Proof of Delivery: Once sent, there's no confirmation that the recipient received the mail.
Cost-Effective: Standard mail is cheaper than certified mail, making it a good option for regular correspondence that doesn't require proof of receipt.
No Priority Handling: Standard mail is processed along with all other regular mail, without any special handling.
Proof of Delivery: The recipient must sign for certified mail, and you receive a return receipt (either physical or electronic) as proof of delivery. This can be crucial for legal or important documents.
Higher Cost: Certified mail is more expensive than standard mail due to the additional services it provides.
Priority Handling: While not as fast as express services, certified mail generally receives more careful handling because of the tracking and proof of delivery requirements.