Informed Visibility mail tracking

USPS Informed Visibility Mail Tracking software for mass letter mailings

Are you a small to mid-sized company that routinely sends letter mail to your customers? Would you benefit from knowing when each letter was scheduled for delivery? If so, then LetterTrack is the perfect solution! LetterTrack provides you with the ability to import a list of names and addresses from a file and then export the same list with an extra field for the intelligent mail barcode. Next, you can use the exported list to either merge and print your letters or you can import the list back into a host software which is used to generate your letters. You simply add the intelligent mail barcode field above or below your address block.

As your mail travels through the postal system to its destination, the intelligent mail barcodes on your mailpieces are scanned at each facility. LetterTrack captures these scans to provide you with real time tracking of all of your mail. When a mailpiece reaches the destination post office to be placed on a USPS postal truck for delivery, the mailpiece is marked as Out for Delivery. Since the USPS has now geo-fenced most of the mailboxes in the US and has also equipped their mail carriers with geo-enabled devices, the final tracking event for most envelopes will be Delivered in Mailbox. This tracking event indicates the exact date/time that a postal truck containing an envelope with an Informed Visibility barcode for a specific address has traveled past the mailbox for that address. Your mail will reach the recipient in 3 to 5 business days since it is being sent via First Class mail. The postal service refers to this system as USPS Informed Visibility® Mail Tracking.

Real-time tracking dashboard

Searchable tracking screen 

LetterTrack has a tracking screen that allows you to track all of your mailpieces using various search filters. Search using any part of the recipients address, by date range, or by information you are able to populate into an internal reference and order number field.  

USPS Informed Visibility software
Informed Visibility API
Informed Visibility software
Informed Visibility mail tracking
Informed Visibility software
Informed Visibility API

Getting Started

Register for your Free Trial

Registering your account is free and takes less than 5 minutes. Your account will have 5 free transactions so you can try LetterTrack at no obligation.

Import a file or enter the recipients addresses one at a time  

Print your envelopes or address labels using your desired format, which will include a USPS Informed Visibility mail tracking barcode above the address. 

Place regular postage on your envelopes and mail them

Apply regular postage to your envelopes using USPS stamps, online postage providers like or with a postage meter.  Place the envelopes in your mailbox for your postal carrier to pickup, drop them in a USPS drop box, or bring them to your local post office.