Lob's API documentation is designed to be completely self-serve, but that doesn't mean we don't love hearing from you. Whether you're new to Lob, or you're continuing to integrate with our services, we want to provide you with expert help. Take a look at the FAQs below, send us an email, or purchase a Premium Support plan for a dedicated phone line and further support.Contact Us Premium Support Plans
Lob's Platform Editions are recurring subscriptions that give you access to our Print & Mail API platform and features. Each Lob Edition corresponds with a different set of platform features and mailing capacity.
Lob currently does not offer a method to bulk upload addresses or mailings via the Lob dashboard. If you are looking for a tool to use our service without integrating with our API directly, we encourage you take a look at our various integrations and partner applications.
Each First Class postcard, letter, and check sent through Lob has a unique IMb barcode that gets scanned by USPS as it travels through the mail stream. You can access this scan event data via our API or Dashboard, or get notifications for them by creating webhooks. Below is a breakdown of each scan event label and description:
For First Class Mail, you will usually see your first scan event around 3 business days after the piece has been scheduled to go out.
Please note that IMb tracking data cannot be accessed via USPS's website and IMb tracking data not available for the following products:
Yes - the prices you see on Lob.com are all-in costs; they include the cost of printing, postage, and delivery.
Delivery times will vary depending on product and destination. Domestic delivery times are listed below:
International mailings will take an additional 5 to 7 days.
*Delivery times above are estimates; Lob uses USPS as our primary carrier and USPS experiences delays from time to time. To see the most up-to-date status of your mailing, check the tracking information of your particular mailing through a GET request or on your Dashboard.
Lob can mail all over the world. International mailings originate from the US and are mailed via USPS First Class Mail.
If you are looking to originate mail in a different country, please contact us.
If your question isn't answered here, please use the contact form below.
Lob offers various support plans for users of all sizes. From self-service to enterprise-scale, our support plans are designed to meet the needs of your business.Premium Support Plans