How we increased engagement by 5% with seasonal email signatures

Your best campaign channel might be your everyday emails 

Holiday campaigns are noisy. Every team is trying to stand out, and most activity disappears into crowded digital feeds. What cuts through is content placed where people are already paying attention. Email signatures do exactly that when they’re part of an integrated campaign. 

Exclaimer lets marketing teams place campaign content directly into employee email signatures, target it to the right audiences, and publish updates from one platform. Signatures stay consistent across devices and mail clients. Employees don’t need to change anything. 

For a December 2024 promotion, we added seasonal assets into Exclaimer, selected our target accounts, and published the update across the company. Every relevant one-to-one email reflected the offer automatically. That single update helped lift email engagement by five percent. 

Turning daily email into campaign real estate 

Our goal was simple. Promote a “12 months for the price of 10” offer before it closed on December 31, 2024. 

Paid activity was running. Nurtures were live. Landing pages were ready. The next step was reinforcing the offer inside conversations already happening with the right accounts. 

This is a classic example of where email signature marketing makes sense. Signatures sit in the part of an email people actually read. They don’t interrupt. They don’t depend on timing. They work inside conversations that already have a target account’s attention. 

So, we added festive banners directly into our platform and activated the update. The offer then appeared in every relevant conversation without creating more work for anyone.

How we did it 

We built and launched the campaign in a few steps. 

• Targeting: We used Salesforce and 6sense to identify in-market accounts with no open opportunities. This kept the message focused. 

• Build: Marketing added a small set of campaign banners, tracking into a master signature template. We prepared an English and German version using the same structure. 

• Rollout: Once published, the update appeared across Outlook, Gmail, and mobile clients. No tickets. No manual steps. No user action. 

The rollout took minutes and reached the exact segment we planned for. With Exclaimer’s analytics suite, we could see which banners performed best and run A/B tests the same way we would with any other marketing channel. 

What the seasonal email signatures delivered 

From December 4 to 31: 

The banners stayed visible throughout the month and drove consistent interaction. Combined with the wider campaign, they created steady engagement from accounts already speaking with our teams. 

The email signatures didn’t compete with other channels. They supported the campaign naturally, highlighting our promotion in everyday conversations.

Additional signature element stats

Why it worked 

This campaign shows why email signatures can be so effective in fast-turn marketing cycles. 

• They’re fast to launch: Once the creative was approved, the update took minutes to launch. Every template was updated everywhere at the same time. 

• They’re consistently visible: Signatures sit inside real conversations. They’re not easy to miss. They work even when inboxes are busy. 

• They fit the stack: Targeting and tracking ran through Salesforce. No new workflows or extra steps were needed. 

This is the value of Exclaimer for marketing teams. You can support campaigns at speed, keep everything on-brand, and reach the right accounts without changing how anyone sends email.

Want to run your own seasonal campaign? 

If you want a campaign channel that works quietly, consistently, and delivers clear results, email signatures are a strong starting point. 

Book a demo to see how Exclaimer helps marketing teams turn everyday email into a high-performing campaign placement.