Marketing Automation: Definition, Bedeutung & Beispiele im Direktmarketing

What is Marketing Automation? — Definition and Relevance in Direct Marketing

Marketing automation refers to the use of software that automates recurring marketing tasks—from campaign planning and audience segmentation to sending personalized advertising materials across various channels. At its core, it's about creating rule-based workflows that respond to specific customer actions (triggers) and deliver the appropriate marketing measure without manual intervention.

While marketing automation was long associated primarily with email campaigns, its scope has expanded considerably in recent years. Modern marketing automation platforms orchestrate email, SMS, social media, web personalization—and increasingly physical direct mail. This is precisely where the relevance for direct marketing lies: trigger-based direct mail, automated postcards for cart abandonment, or personalized reactivation mailings via post are now as programmable as an email sequence.

The global market for marketing automation software reached approximately $6.65 billion USD in 2024 (Grand View Research, 2024) and is projected to grow to $15.58 billion USD by 2030—an annual growth rate of 15.3 percent. In the DACH region, however, adoption lags significantly: According to a Marketing Hooklines survey (2022), only 3 to 5 percent of small businesses and around 10 percent of medium-sized companies use a marketing automation solution. The ZHAW study 2024, which surveyed 385 companies in Switzerland and Germany, found that 44 percent are still in a "learning phase" regarding AI integration, with only 5 percent reaching the "scaling phase."

History of Marketing Automation — From the Beginning to Today

The history of marketing automation dates back to the early 1990s. In 1992, Yuchun Lee, Ruby Kennedy, and David Cheung founded Unica in the USA—one of the earliest marketing automation platforms combining customer analytics, cross-channel campaign management, and marketing operations. In 2000, Unica released "Affinium," one of the first comprehensive marketing software suites.

The next milestone came in 1999, when Mark Organ, Abe Wagner, and Steve Woods founded Eloqua in Toronto, establishing "Marketing Automation" as its own software category. Eloqua introduced concepts like lead scoring and automated nurturing workflows that remain industry standards today. In 2001, Scott and Eric Martineau founded Infusionsoft (now Keap), making marketing automation accessible to small businesses.

The key year was 2006: Both HubSpot and Marketo were founded—two platforms that brought marketing automation into the mainstream. HubSpot coined the term "Inbound Marketing" and democratized marketing automation for SMEs, while Marketo positioned itself as an enterprise solution for B2B companies. In 2007, Pardot also launched, later joining the Salesforce ecosystem.

The consolidation phase began in 2010: IBM acquired Unica for approximately $480 million USD, Oracle bought Eloqua in 2012 for $871 million USD, and Salesforce secured ExactTarget (including Pardot) in 2013 for $2.5 billion USD. The provisional peak came in 2018 with Adobe's acquisition of Marketo for $4.75 billion USD—a sign of how strategically important marketing automation had become for major technology corporations.

How Marketing Automation Works in Direct Marketing

In direct marketing—and specifically in direct mail—marketing automation works on the same principle as in digital marketing: A customer performs a specific action (the trigger), and the system automatically responds with a predefined marketing measure. The crucial difference: Instead of an email, a physical direct mail piece, postcard, or self-mailer is printed and sent.

Typical triggers for automated direct mail include cart abandonment (customer adds products to cart but doesn't purchase), first orders (welcome mailing with coupon for second purchase), inactivity (win-back campaign after 60 or 90 days without purchase), birthdays or anniversaries, and upsell/cross-sell opportunities after a purchase. The connection between the online shop or CRM system and the print service provider happens via API interfaces: The marketing automation system passes personalized data (name, address, offer, coupon code), and the print service provider produces and sends the letter—often within 24 to 48 hours.

The CMC Print Mailing Study 2025 by Deutsche Post impressively demonstrates the effectiveness of this approach: Over 43 e-commerce retailers sent 1,157,674 print mailings to existing customers and achieved an average conversion rate of 4.1 percent with a ROAS of 1,011 percent—each advertising euro invested generated over 10 euros in revenue. The best case (Deutsche See) even reached 1,902 percent ROAS with a 7.7 percent conversion rate. Notably: 47 percent of orders came in only from the fifth week onward after dispatch—a long-term effect rarely achieved by digital channels.

The Omnichannel Effect: Combining Print and Digital

Marketing automation's greatest strength is revealed when physical and digital channels are intelligently combined. Industry studies consistently show that an omnichannel approach significantly improves campaign performance. The numbers prove it: Companies combining direct mail with digital channels achieve a 63 percent higher response rate than single-channel campaigns (Postalytics, 2025).

In practice, a typical omnichannel workflow looks like this: A customer abandons their cart. Within two hours, they receive an automated email reminder. If they don't respond within 48 hours, a personalized direct mail piece with an individual coupon code is automatically triggered. When the customer opens the letter and visits the online shop, they see a matching landing page. Every step is measurable—from email opening to QR code scanning on the letter to final conversion.

The development is rapid: According to a Keypoint Intelligence study (2024), 56 percent of companies already use direct mail automation software, compared to only 40 percent in 2023. The average mailing volume per company has nearly doubled—from 34.9 million mailings (2024) to 67.3 million (2025). And 82 percent of marketing decision-makers plan to further increase their direct mail budget.

The Leading Providers for Print Mailing Automation

The market for automated direct mail has professionalized in recent years. In Europe, optilyz (founded 2015 in Berlin) is the leading provider: The platform integrates with common marketing automation systems like Braze, Emarsys, and Salesforce and is used by hundreds of European companies. In the USA, Lob (API-first approach, enterprise focus), PostPilot (native Shopify and Klaviyo integration, e-commerce focus), and Postalytics (self-service for personalized mailings) dominate.

In the broader marketing automation platform space, HubSpot leads with approximately 35 percent market share and around 248,000 paying customers worldwide (HubSpot IR, Q4 2024). The Gartner Magic Quadrant 2024 for B2B marketing automation platforms lists five leaders: HubSpot (4th consecutive year), Salesforce Marketing Cloud Account Engagement (7th time), Oracle Eloqua (12th time), Microsoft Dynamics 365 Customer Insights (3rd time), and Adobe Marketo Engage.

For companies seeking to enter automated direct mail, there are different approaches: Large enterprises integrate print mailing providers like optilyz into their existing marketing automation platform. Mid-sized e-commerce retailers use specialized solutions like PostPilot that integrate directly into the online shop. And AutoLetter offers a particularly low-threshold entry: automated, personalized direct mail without complex IT integration—with integrated tracking and measurable results.

ROI and Benchmarks: What Marketing Automation Delivers

The economic impact of marketing automation is well documented. The frequently cited Nucleus Research (2022) study found that every dollar invested in marketing automation generates on average $5.44 USD in returns within the first three years—with a payback period of less than six months. Simultaneously, marketing automation increases sales productivity by 14.5 percent and reduces marketing overhead by 12.2 percent, according to Nucleus Research.

In lead nurturing specifically, the effects are particularly strong: The Annuitas Group found that companies with automated lead nurturing generate 451 percent more qualified leads. Nurtured leads also make 47 percent larger purchases than non-nurtured leads. Forrester Research confirmed that excellent lead nurturing produces 50 percent more sales-ready leads at 33 percent lower costs.

For direct mail specifically, Deutsche Post's CMC studies show ROI particularly clearly: The CMC Study 2025 found an average ROAS of 1,011 percent for customer mailings—and 12 percent of recipients visited the online shop after receiving the mailing. The average shopping cart was 13 percent higher than the previous order. The long-term effect is crucial here: Because nearly half of conversions arrive only from week five onward, short-term measurement significantly underestimates the true ROI of print mailings.

Legal Advantages of Automated Direct Mail

Marketing automation in direct mail benefits from a decisive legal advantage over digital channels: Direct mail advertising is permissible under GDPR even without prior consent. The legal basis is Art. 6(1)(f) GDPR (legitimate interest), supported by Recital 47, which explicitly names direct marketing as a legitimate interest. The Higher Regional Court Stuttgart confirmed this on February 2, 2024 (Case No. 2 U 63/22)—even for new customers without an existing business relationship.

Email advertising, however, requires explicit consent under German Unfair Competition Act § 7(2) No. 3 (double opt-in). In practice, this means: Automated direct mail reaches nearly 100 percent of existing customers, while email often addresses significantly fewer contacts because not all have valid opt-ins. For trigger-based campaigns like cart abandonment mailings or win-back campaigns, this difference is crucial: A customer who abandons their cart and hasn't consented to the newsletter is unreachable via email—but is reachable via automated direct mail.

Art. 22 GDPR (automated individual decisions) typically does not apply to standard marketing automation applications like campaign targeting and segmentation, as they don't produce a "legal effect" or "significant impact" within the meaning of the article. However, Art. 22 may apply to automated price discrimination, exclusion from offers, or credit decisions—individual case review is required here. Companies must document the balancing of interests, provide a right to object under Art. 21 GDPR, and disclose the data source for third-party new customer data (Art. 14 GDPR).