This article was published in 2025 and references a historical event from 2015, included here for context and accuracy.
- Tension: Physical mail was losing relevance in an increasingly digital world, yet abandoning it entirely meant losing its unique advantages of tangibility and trust.
- Noise: The debate between “digital versus physical” marketing channels obscured the possibility that the two could enhance rather than compete with each other.
- Direct message: The most effective marketing strategies don’t force a choice between channels but find ways to make them work together, amplifying the strengths of each.
To learn more about our editorial approach, explore The Direct Message methodology.
In 2015, the U.S. Postal Service launched something that seemed almost contradictory: making physical mail more valuable by digitizing it. The Informed Delivery pilot in New York offered residents daily 8 a.m. emails showing images of the envelope mail heading to their mailboxes later that day.
What started as a 6,600-person test in Virginia revealed something marketers are still trying to understand a decade later: digital preview didn’t cannibalize physical mail response. It amplified it.
The Virginia results were striking. Direct mail recipients using Informed Delivery responded at 5.9%, compared to 0.5% for non-subscribers. That’s nearly twelve times higher. Nine out of ten users wanted to keep the free service. Rather than replacing the mailbox experience, the digital notification created anticipation for it.
Why preview beats surprise
The Postal Service stumbled onto something behavioral psychology already knew: anticipation enhances experience. When you know something is coming, you’re more likely to engage with it intentionally rather than dismissively.
The “mail CEO” problem (one household member sorting mail before others see it) meant most direct mail never reached its intended audience. Informed Delivery bypassed the gatekeeper by reaching everyone’s inbox directly.
But the deeper insight wasn’t about circumventing household dynamics. It was about meeting people where their attention already lived. By 2015, email checking had become a morning ritual for most Americans. Informed Delivery inserted physical mail into that digital routine, making it part of the daily information diet rather than an interruption to it.
The program also solved direct mail’s accountability problem. Digital channels offered real-time tracking and measurement. Physical mail arrived in a black box. You sent it, hoped it got there, and waited to see if anyone responded. Informed Delivery created a digital paper trail for physical pieces, giving mailers confirmation of delivery and engagement data they’d never had before.
The click-through innovation nobody expected
What made Informed Delivery more than just a tracking tool was the HTML option. Mailers could provide code that made their envelope image clickable, linking directly to a website or product page. Suddenly, a physical mailpiece had two chances to convert: once in the morning email, again when the actual piece arrived. The morning preview became a teaser. The physical mail became the follow-through.
This wasn’t just about more impressions. It created a “buy it now” capability for a medium that traditionally required recipients to take multiple steps (open envelope, find website, type in URL, navigate to product). The friction between seeing an offer and acting on it collapsed. If the morning preview caught someone’s interest, they could click through immediately, before the mail even arrived.
Channels become more valuable when they complement each other’s weaknesses rather than compete for the same attention.
The Informed Delivery model demonstrated this principle in action. Email excels at immediacy and convenience but lacks physical presence and perceived legitimacy. Direct mail offers tangibility and trustworthiness but suffers from delayed engagement and measurement challenges. Together, they covered each other’s gaps. The email created urgency and ease. The physical piece provided substance and credibility.
This matters beyond direct mail. The same tension exists across marketing: social media versus long-form content, video versus text, mobile versus desktop. We keep framing these as either-or choices when the question should be how they reinforce each other. The channels that survive aren’t necessarily the newest or most efficient. They’re the ones that find complementary partnerships.
What happened next
Informed Delivery expanded beyond New York. By 2025, millions of households use it. The Postal Service added package tracking, not just letters. Retailers incorporated it into omnichannel strategies, using the morning notification to drive online sales while the physical catalog or promotional piece reinforced brand presence later in the day.
But the bigger shift was conceptual. Informed Delivery proved that digitization doesn’t always mean replacement. Sometimes it means enhancement. The physical mail didn’t need to become obsolete for digital tools to add value. The digital tools didn’t need to eliminate physical mail to justify their existence. They could coexist productively.
This runs counter to how we typically think about channel evolution. New technologies are supposed to disrupt and replace old ones. Email was supposed to kill direct mail. Social media was supposed to kill email. Each wave of innovation gets framed as an extinction event for what came before.
Informed Delivery suggested a different model: integration over replacement.
The lesson we’re still learning
A decade after the New York pilot, marketers are still figuring out how to apply this insight. We have more channels than ever but struggle to make them work together coherently. We optimize each in isolation (email open rates, social engagement, direct mail response) rather than designing experiences that flow across them strategically.
The Informed Delivery approach offers a template: identify where attention naturally congregates (morning email checks), insert your less-immediate channel into that routine (physical mail preview), create a path that lets people act on interest immediately (clickable HTML), then follow through with the strength of your original medium (tangible mailpiece). It’s not about making everything digital or preserving everything physical. It’s about orchestrating touchpoints so each amplifies the others.
The 5.9% response rate from the Virginia test wasn’t magic. It was the result of reducing friction at every step. People knew mail was coming, could preview it in a context where they were already paying attention, could act on interest without waiting, and still received the physical reinforcement later. No single channel could deliver all of that. The combination could.
This matters more now than in 2015. Channel proliferation has increased, not decreased. The marketers who succeed aren’t the ones who pick the right channel. They’re the ones who understand how channels can enhance each other when thoughtfully combined. Informed Delivery wasn’t revolutionary technology. It was strategic integration. That’s the lesson worth remembering.
