We’ve all been there. Spending hours waiting for mail delivery, only to have nothing in our mailboxes by the end of the day. Although it sucks, we can’t forget the fact that the USPS loses over 146 billion mailpieces every year. Some of the mail goes missing after theft or misdelivery.
If the USPS didn’t lose your mail, perhaps they sent an “Out for Delivery” notification to let you know that the mailman has it. Or maybe, the carrier had no way to access the neighborhood, and they’ll have to give it another try the next day. Whatever the reason, as a business, you don’t want your mail delivery failing--at least not in the middle of a hot buying season.
In this post, we look into certified mail as a possible cure for mail delivery fail, the most common reasons why mail delivery could fail, and how to fix it.
Using Certified Mail: Rules, Pros, and Cons
Certified mail is a service offered by the USPS. The sender receives an official receipt as proof that the mail was delivered or that an attempt was made to deliver. When shipping, the sender of the mail must provide their signature, which stays in the USPS database for a maximum of 2 years. At an additional fee, the sender can also request a return receipt.
Rules of Certified Mail
Certified mail is not the same as regular mail. First of all, you must visit the post office in person to send certified mail. Here are other things to keep in mind when using certified mail:
- The USPS makes only one delivery attempt for certified mail.
- Someone must be present at the point of delivery to pick up certified mail. Otherwise, it gets returned to the post office.
- If no one came out at the mail delivery time, the recipient must go to the post office to pick it up.
- In case the recipient misses the mail delivery time, they should get a reminder note from the carrier acknowledging that the delivery was attempted.
- If the mail item remains in the post office for 5-7 days after the first delivery attempt, the USPS leaves a second delivery notice at the mailbox.
- If no one is there to pick the mail 5-7 days after the final attempt, the USPS returns the item back to the sender.
Certified mail takes 3-5 business days with First Class mail. You can also upgrade to Priority Mail Delivery, which takes 2-3 days.
Certified Mail Pros
- Certified mail ensures that the mail item gets shipped to the right person only.
- The signature provides legal proof that the item has been sent to the recipient.
- The sender can restrict delivery to specific people only.
- Certified mail can be easily tracked online or via phone
Certified Mail Cons
- If no one is home, the mail item goes back to the post office. The recipient must go to the post office and provide identification to pick it up.
- Certified mail isn’t always convenient for eCommerce because it comes with extra charges.
- The 15-day waiting period before the item gets shipped back to the sender might be too short for recipients if, for some reason, they can't make it to the postal office.

Five Reasons Why Your Mail Delivery Could Fail
Mail delivery is not always successful the first time. Sometimes, the carrier faces several hurdles in the attempt to deliver items to your mailbox. From non-existent mailboxes to loose pets on the premises, here are 5 reasons we think that your mail delivery could fail.
Invalid Address/Mailbox
Incorrect addresses are a solid reason why your mail delivery could fail. We all make mistakes, more so when filling out zip codes, street names, or state abbreviations.
Missing critical details on addresses may lead to invalid mailboxes. The good news is that it can be fixed by your address verification provider. Address verification checks and corrects errors in a given address.
Full Mailbox
Sometimes the mailing company won’t deliver mail to a full mailbox. If the mail is undeliverable, the carrier leaves a PS form 3849 (Redelivery notice). The mail will be held at the local post office for at least 10 days, after which it bounces back to the sender, just like in a mail delivery subsystem.
Inaccessible Mailbox
The USPS values carrier safety. They will ask you to remove any obstructions making the mailbox inaccessible. Big hills of snow, vehicles, and other obstructions to your mailbox need to be cleared before the mailman arrives. USPS policy requires that the mailman get out of the delivery vehicle and make the delivery to your mailbox. If it’s not easily accessible, the safety of the carrier is at risk, and your mail might not be delivered.