Email marketing has taught teams to personalize messages, create measurable calls to action, test campaign variables, and use customer behavior to determine what happens next.
Those same practices can make direct mail more effective.
Modern direct mail campaigns can be triggered by customer activity, personalized with existing data, and connected to digital destinations that make engagement easier to measure. The goal is not to make direct mail behave exactly like email. It is to apply the discipline of email marketing while taking advantage of a physical channel.
Here are five email marketing best practices that can improve your direct mail campaigns.
1. Personalize the message
Personalization is standard in email, but direct mail campaigns are still frequently built around one generic design and offer.
Adding a recipient’s name is a starting point. More meaningful personalization uses customer data to determine what the mailpiece says, shows, and asks the recipient to do.
Depending on the campaign, you could:
- Recommend products based on previous purchases
- Feature a recipient’s closest store or service location
- Recognize a loyalty or customer anniversary
- Adjust the offer based on lifecycle stage
- Change imagery based on location or preferences
- Reference an abandoned cart or recently viewed product
A first-time customer, repeat buyer, and lapsed customer should not necessarily receive the same mailpiece. Each group has a different relationship with your business and a different reason to respond.
The data used to personalize email campaigns can often support direct mail personalization, too. CRM fields, purchase history, account activity, location, and behavioral data can all help teams create personalized direct mail campaigns at scale.
Lob’s Create + Personalize tools use customer data, merge variables, and conditional logic to tailor mailpiece content without requiring teams to manually create every variation.
2. Create a clear, trackable call to action
Every campaign needs one clear next step.
Email makes that relatively simple because recipients can click a button. Direct mail requires the recipient to move from a physical mailpiece to another destination, so the action should be obvious and easy to complete.
Common direct mail calls to action include:
- Scanning a QR code
- Visiting a short or personalized URL
- Redeeming a unique promotional code
- Calling a dedicated phone number
- Returning a prepaid response card
- Bringing the mailpiece to a physical location
Avoid giving every option equal emphasis. A postcard with a QR code, URL, phone number, social handle, and multiple offers can make the recipient decide which action to take. That additional friction may reduce the likelihood that they take any action.
Choose one primary CTA based on the campaign goal. Then use a trackable mechanism that connects the response to the appropriate campaign, audience segment, or mailpiece.
For example, dynamic QR code tracking can connect individual mailpieces to digital destinations while supporting campaign measurement and follow-up.
3. Give recipients a reason to engage through mail
Successful email programs give subscribers a reason to remain engaged. They might provide early access, useful content, personalized recommendations, or offers that match the subscriber’s interests.
Direct mail should deliver its own value rather than repeating an email word for word.
Consider what the physical format can provide that another channel cannot. That might include:
- An offer available only through the mailpiece
- A useful checklist, guide, or reference card
- A personalized recommendation
- An invitation to a customer or community event
- A loyalty reward or customer milestone gift
- A sample, insert, or tactile element
- A reminder the recipient can keep in a visible location
The objective is not always an immediate sale. A well-timed mailpiece can welcome a new customer, explain a complicated service, encourage an account renewal, or reconnect with someone who has stopped responding to email.
Direct mail and email are most effective when they play different but connected roles. For example, an email might introduce an upcoming offer, while a mailpiece provides a personalized code the customer can redeem. A direct mail campaign could also reach customers who ignored a sequence of emails without simply repeating the same message.
A coordinated direct mail and email marketing strategy lets each channel support a different part of the customer journey.
4. Test one campaign variable at a time
Email marketers regularly test subject lines, calls to action, creative treatments, and send times. Direct mail campaigns should use the same iterative approach.
Instead of sending one version to the entire list, divide a portion of the audience into comparable groups and change one meaningful variable.
You could test:
- Postcard versus letter
- Photography versus illustration
- Personalized versus general imagery
- Percentage discount versus dollar discount
- QR code placement
- Headline or CTA language
- Short copy versus detailed copy
- Product-focused versus benefit-focused messaging
Changing one variable at a time makes it easier to understand what influenced the result. If you change the format, offer, headline, and audience simultaneously, you will not know which change made the difference.
Each version also needs its own tracking mechanism. Unique QR codes, URLs, promotional codes, or phone numbers can help connect responses to the correct variation.
Before declaring a winner, make sure the audience is large enough and the difference is meaningful. Then apply what you learned to the next campaign rather than treating one test as a permanent answer.
A structured direct mail A/B testing process makes it easier to run repeatable experiments and improve campaigns over time.
5. Maintain list quality and honor communication preferences
Email marketers know that a larger list is not automatically a better list. Invalid addresses, disengaged subscribers, duplicate contacts, and irrelevant sends can weaken campaign performance.
Direct mail list quality matters even more because every unnecessary piece requires printing and postage.
Before launching a campaign:
- Remove duplicate customer records
- Standardize address formatting
- Verify that addresses are deliverable
- Suppress recipients who have opted out
- Exclude people who have already completed the desired action
- Confirm that the audience matches the campaign goal
- Review how recently the customer data was updated
Give recipients a straightforward way to update their communication preferences or stop receiving promotional mail. This could be handled through a short URL, QR code, customer account page, or support process.
Preferences should also be coordinated across channels. Someone who opted out of email has not necessarily opted out of direct mail, but repeatedly contacting an uninterested customer through a different channel can still damage the relationship.
Use engagement data and customer preferences to determine which channel, message, and frequency make sense. Lob’s Address Verification can also help teams standardize and verify mailing data before it enters production.
Connect direct mail to your marketing workflow
Applying email marketing practices to direct mail requires connected data and repeatable processes.
Direct mail should not operate through a separate spreadsheet and manual handoff every time a campaign launches. Connecting it to your CRM, ecommerce platform, CDP, or marketing automation system makes it possible to use the same audience segments and customer triggers across channels.
For example, a direct mail workflow could automatically respond to:
- An abandoned cart
- A first purchase
- A subscription renewal
- A customer anniversary
- A missed appointment
- A period of inactivity
- A loyalty milestone
These triggers help teams send mail while the message is still relevant. They also allow direct mail to become part of a coordinated customer journey instead of a one-time campaign.
Connecting direct mail with your marketing tech stack removes manual handoffs and makes behavior-based campaigns easier to scale.
Bring email-level precision to direct mail with Lob
Lob helps teams create, personalize, automate, produce, and track direct mail through connected customer and marketing workflows.
Use customer data to personalize mailpieces, trigger sends based on behavior, and monitor each piece as it moves through production and delivery. Lob’s platform combines Create + Personalize with Production + Tracking, giving teams greater control over campaigns from creation through delivery.
Book a demo to see how Lob can help you build more personalized and measurable direct mail campaigns.
Frequently asked questions about email and direct mail marketing
FAQs
What is direct mail marketing?
Direct mail marketing uses physical mailpieces—such as postcards, letters, self-mailers, and catalogs—to reach a targeted audience.
Campaigns can support customer acquisition, retention, reactivation, promotions, reminders, and other customer communications. Modern direct mail can also be personalized and triggered using data from CRM, ecommerce, and marketing automation platforms.
How can email and direct mail work together?
Email and direct mail can support different stages of the same customer journey.
A brand might use email for frequent updates and direct mail for important offers, reactivation campaigns, or customer milestones. Direct mail can also follow up with customers who have stopped engaging with email, while email can reinforce an offer after a mailpiece is delivered.
Keep the audience, timing, creative, and offer coordinated so the channels feel connected rather than repetitive.
How can marketers track direct mail performance?
Use trackable response mechanisms such as dynamic QR codes, personalized URLs, unique promotional codes, dedicated phone numbers, and campaign-specific landing pages.
Connect that response data with delivery events, website activity, purchases, and CRM records to understand which audience segments and campaign versions generated results.
Modern direct mail platforms can also provide visibility into production and delivery status, making it easier to track direct mail campaign performance in real time.
What should marketers test in a direct mail campaign?
Marketers can test the mailpiece format, headline, offer, call to action, imagery, personalization approach, and landing-page destination.
Choose one variable for each test, keep the remaining campaign elements consistent, and use separate tracking mechanisms for each version. This makes it easier to determine which change influenced the results.
Answered by:
Sam Melero
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