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Marketing

Using Email Signatures for Marketing Campaigns

December 28, 2025 5 min read
Marketing analytics and campaigns

Your team sends thousands of emails every week. Each one is an opportunity to promote your latest campaign, event, or content—without spending a dime on advertising.

The Untapped Marketing Channel

Email signatures are the most underutilized marketing channel. Unlike social posts that disappear in feeds or ads that get blocked, signature banners reach people who are already engaged with your business.

45,000
Monthly impressions (50-person team)
100%
Warm audience reach
$0
Cost per impression

Campaign Ideas for Signature Banners

Product Launches

Launching a new product or feature? Add a banner to every signature a week before launch. By the time you announce publicly, your existing contacts are already aware.

Product launch team meeting

Events and Webinars

Promoting a webinar or conference? Signature banners can drive registrations from people who might not see your social posts or email blasts.

Content Promotion

Published a new case study, whitepaper, or blog post? Add it to your signatures for a few weeks to maximize distribution.

Seasonal Campaigns

Holiday sales, end-of-quarter promotions, or seasonal offers can all be promoted through signature banners with scheduled start and end dates.

Best Practices for Signature Campaigns

Keep banners small and focused

One message, one CTA. Don't try to promote everything at once.

Use compelling visuals

Eye-catching graphics increase click-through rates significantly.

Add UTM tracking

Track clicks in Google Analytics to measure campaign performance.

Rotate regularly

Change banners every 2-4 weeks to keep content fresh.

Measuring ROI

To measure the effectiveness of your signature campaigns:

  • Use unique UTM parameters for signature links
  • Track clicks through your signature management tool
  • Monitor landing page conversions from signature traffic
  • Compare performance across different banner designs
Analytics dashboard showing campaign performance

Start your signature marketing campaign

Siggly makes it easy to add campaign banners to your team's signatures. Schedule them in advance, track clicks, and measure ROI.