Even though the USPS loves working with us, they still have to charge for sending mail. Even if you are on the Developer edition of Lob, before you get started we'll ask you to input your payment information, then add Lob Credits, so you are prepared to send mail!
Send mail via , our user-friendly interface built atop our APIs. We support one-time (1:many, targeted outreach), or automated (1:1, based on a trigger) campaigns.
- Every developer knows that the path to getting a successful integration up and running starts here. You’ll be provided an example of each type of Lob API request and response, so you can build an integration that works for you/your team.
- What if you want to send large-scale direct mail campaigns but don’t want to execute them manually via the campaign tool? Well, you’re in luck! Learn how you can achieve the same efficiency but via the Campaigns API so you can automate your sends.
For a one-time campaign, you'll need your audience data (.csv); see here for how to .
To set up and send automated or triggered campaigns, you'll want to connect directly to you customer data. Learn more about our Integrations here.
- One of the most powerful tools you have available to you when sending direct mail with Lob is the ability to make every piece unique to each recipient. Here are some tips on how to get the most out of Lob’s HTML capabilities.
- Whether you are sending a single postcard or millions of letters, our design guidelines will ensure your direct mail designs are created in the correct layouts and dimensions, so they’ll render exactly as expected when produced.
- Here are some design layout and dimension guides you’ll want to keep in mind.
- Learn more about formatting and ensuring your .
- One of the most powerful advantages of using Lob is that you can have visibility of any individual mail piece as it moves across the entire print production and delivery process.
- Every team measures unique insights to ensure you hit your targets. Discover a few views that cover some of the most important metrics you should care about.
- Get inspired by campaign examples from some of the best of the best.
- Not sure where to start? We’ve got you covered. Hit the ground running with several pre-made examples and even use them as a foundation to build your creatives.
- Not sure where to start? We’ve got you covered. Here you can take inspiration from several pre-made examples and even use them as a foundation to build your own unique creative
- Gain a deeper understanding of your mail data at a mail piece, recipient, batch, or campaign level by adding your own data labels.
Lob's mission is to help the world send intelligent mail, one mail piece at a time. By making direct mail sends as easy as email through the use of modern APIs, Lob strives to modernize this often overlooked channel of direct communication.
Lob is a great fit for all users of direct mail from all walks of life:
Are you brand new to direct mail as a channel, and looking for ideas and best practices on getting started?
Are you looking to infuse direct mail automation into your existing business workflows and seeking for ways to modernize your enterprise solutions and tools?
Or are you building a highly sophisticated experimentation program using this rapidly iterative and performative channel?
Start at a pace you're most comfortable with, and Lob can help meet your direct mail needs, one step at a time.
Sending mail in an accurate, reliable, and programmatic way involves the following four steps:
The first step to any successful direct mail program is to put together an audience list for effective targeting.
Whether you are using your or with third-party lists, make sure that you create targeted mailing lists with select attributes to maximize your responses and channel ROI.
Easily in , or send a recipient address per mail piece in your API calls.
You can also improve the deliverability of your mail pieces by passing your addresses through Lob's functionality to reduce bad addresses, or incorporate Lob's product to fully ensure your mail data is as accurate as possible to maximize your intended reach.
Depending on where you are in your quest for intelligent mail, or given your available budget or resources, there are multiple ways to leverage Lob's platform and accelerate your growth. Read on!
We're not your average direct mail experience. Explore Lob and see how we can meet your immediate needs for direct mail automation.
Dive right in: Send your via to get a feel for intelligent direct mail.
Explore our APIs! Check out our to explore our in your preferred programming language, explore our our , and go to to access our supported SDK libraries.
Understand other ways in which you can up-level your direct mail program.
Explore how to operationalize to create mail pieces that can truly resonate with your audience
Experiment with different and to see how to best increase relevance and conversion
Ingest data, set up notification alerts via , or add to improve attribution and reporting
so you can learn how to tap into your existing tech stacks and augment your datasets to expand the possibilities of creating seamless and timely omnichannel experiences with a touch of direct mail.
If you are a world-class technology company interested in partnering with us, .
In order to use direct mail with Lob, there are three components that must be thought through to send mail via our platform:
Design: generate clear and concise instructions around what you're sending, including creative artwork and copy. Learn about designing creatives in Lob.
Data in: pass data that determines how you want to send mail and get it delivered, including address data, merge variables for personalization, postage and delivery strategy. Learn about building your mail strategy in Lob.
Data out: pass data that exports mail tracking information to enable downstream workflows or measure attribution for better performance. Learn more about how to in Lob.
Based on your API call submission and send settings, a printer from a strategically distributed network of printers managed by Lob will fulfill your orders. Once printed, your mail orders will be handed off to USPS for delivery.
Track your mail order at each stage of production (and delivery) by utilizing our mail tracking, and get near real-time updates via our webhooks.
Once production is fulfilled by our printers, your mail will be on its merry way to be delivered to its final destination! Lob uses USPS for delivery in the US; as such, Lob does not have physical control over your mail once USPS has taken possession.
However, working hand-in-hand with USPS as our partner, Lob is able to provide granular digital tracking details of each individual mail piece as it moves towards its destination. As the mail makes its way through every distribution or sorting facility, or arrives at the area post office, USPS will send mail tracking details to Lob. Lob will then surface this information in near real-time, ensuring your mail pieces were delivered in a timely manner and received by the intended recipient.
Access advanced features and more mail formats to improve audience responses as needed
Generate a campaign hypothesis, and build split-test or multivariate test cohorts to see which creative or campaign resonates with your segment
Get started with a platform subscription, paired with unit cost for mail pieces. Features vary depending on the pricing Edition.
Recent USPS postage rate changes have taken effect as of July 13, 2025. These adjustments are part of USPS’s regularly scheduled pricing updates, designed to account for inflation and rising operational costs. Lob doesn’t add fees when USPS rates go up – only the postage rate increases apply. You can find more details outlined in the .
Prices are inclusive of print, postage and envelopes (where applicable).
Prices are inclusive of print, postage, and envelopes (where applicable).
Prices are inclusive of print, postage and envelopes (where applicable).
* Extra postage fees for 8.5x11 letters over 6 sheets (6 pages single-sided, or 12 pages double-sided) and 8X14 letters over 3 sheets (3 pages single-sided, or 6 pages double-sided)
Prices are inclusive of print, postage, and envelopes (where applicable).
Prices are inclusive of print, postage, and envelopes (where applicable).
Questions about pricing? Reach out to your Account Manager or our .
Up to 500
Up to 3,000
Up to 6,000
$0.993
$0.673
$0.623
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6x11, First Class
$1.259
$0.919
$0.879
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6x9, Standard Class
$0.966
$0.646
$0.596
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6x11, Standard Class
$1.026
$0.696
$0.646
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5x7, First Class
_
_
_
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5x7, Standard Class
_
_
_
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International 4x6 Postcard Fee
$1.440
$1.379
$1.379
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6x18 Bifold, First Class
_
_
_
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6x18 Bifold, Standard Class
_
_
_
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11x9 Bifold, First Class
_
_
_
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11x9 Bifold, Standard Class
_
_
_
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17.75x9 Trifold, First Class
_
_
_
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17.75x9 Trifold, Standard Class
_
_
_
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$1.189
$0.899
$0.859
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Black & White Letter, Standard Class
$0.806
$0.636
$0.606
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Color Letter, Standard Class
$0.966
$0.686
$0.636
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Black & White Additional Page (pdf page)
$0.10
$0.09
$0.08
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Color Additional Page (pdf page)
$0.20
$0.19
$0.16
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Letter over 6 sheet fee
$2.435
$2.435
$2.435
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Perforation
$0.06
$0.02
$0.02
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Return Envelope
$0.04
$0.04
$0.04
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Custom Return Envelope
$0.05
$0.05
$0.05
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Int'l Letter Postage (1st Class Only)
$1.18
$1.18
$1.18
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Certified Mail (1st class only)
-
$6.7
$6.7
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Electronic Return Receipt
-
$2.82
$2.82
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Certified Mail With Electronic Return Receipt
-
$9.52
$9.52
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Registered Mail (1st class only)
-
$23.30
$23.30
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Legal Letters (B/W), First Class
-
-
-
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Legal Letters (B/W), Standard Class
-
-
-
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Legal Letters (Color), First Class
-
-
-
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Legal Letters (Color), Standard Class
-
-
-
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Paper card affix
-
-
-
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Buckslips
-
-
-
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Snappack (Color), First Class
-
-
-
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Snappack (Color), Standard Class
-
-
-
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-
$0.220
$0.220
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Check over 6 Sheet Fee
-
$2.435
$2.435
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Monthly
–
$260
$550
Annual
–
$225
$480
4x6, First Class
$0.872
$0.612
$0.582
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12x9 Bifold, First Class
_
_
_
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12x9 Bifold, Standard Class
_
_
_
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Black & White Letter, First Class
$1.029
$0.859
$0.829
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Snappack (B/W), First Class
-
-
-
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Snappack (B/W), Standard Class
-
-
-
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Checks
$1.159
$1.009
$1.009
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Monthly supported mailings
6x9, First Class
Color Letter, First Class
Check Attachment Page