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On this page
  • Why Go It Alone? Cross-Promotion Builds Faster, Better
  • What Is Cross-Promotion?
  • Benefits of Cross-Promoting to Grow Your List
  • 1. Run a Co-Branded Giveaway
  • 2. Do a Newsletter Swap or Shout-Out
  • 3. Guest Content With an Opt-In CTA
  • 4. Host a Joint Webinar or Training
  • 5. Cross-Link in Lead Magnets or Thank You Pages
  • 6. Partner With Complementary Tools or Platforms
  • 7. Create a Shared Resource Hub or Email Series
  • Best Practices for Cross-Promotion Success
  • Real Example: How Cross-Promotion Added 1,800+ Leads
  • Final Thought: Grow Together, Grow Faster
  1. TOPICS
  2. List Building

Cross-Promotion Tactics for Expanding Your Email List

Grow your email list faster with proven cross-promotion tactics and partnerships that work in 2025.

Last updated 1 month ago

Why Go It Alone? Cross-Promotion Builds Faster, Better

Sometimes the best way to grow your email list isn’t solo — it’s strategic collaboration.

Cross-promotion connects you with warm, aligned audiences from other creators, brands, or platforms — multiplying your reach without doubling your budget or effort.

In 2025, savvy marketers are using cross-promotions to add hundreds (or thousands) of quality subscribers in just one campaign. Let’s explore the top ways to make this work — and avoid common pitfalls along the way.


What Is Cross-Promotion?

Cross-promotion is a marketing collaboration where two or more brands promote each other’s content, product, or offers to their respective audiences — often in a mutually beneficial, non-competitive way.

In email marketing, this usually means:

  • Promoting each other’s lead magnets

  • Featuring guest content or shout-outs

  • Running joint events (webinars, giveaways, etc.)

  • Swapping newsletter mentions

Explore more that work in 2025.


Benefits of Cross-Promoting to Grow Your List

✅ Tap into pre-built, trusting audiences ✅ Lower cost per lead than ads ✅ Build brand authority through association ✅ Foster long-term partnerships ✅ Expand into related verticals

The key? Find partners with aligned audiences but non-overlapping offers.


1. Run a Co-Branded Giveaway

Giveaways are still effective — especially when run with the right partner.

How to do it:

  • Choose a relevant, high-value prize (tools, access, resources)

  • Create a shared landing page or form

  • Promote across both brands’ lists, socials, and blogs

  • Collect emails and follow up with welcome sequences

  • Offer bonus entries for referrals or social shares

Example: “Inbox Mastery Toolkit Giveaway – Hosted by SenderWiz + ColdEmailExperts”

🎯 Tip: Always clearly state how emails will be used (GDPR compliance).


2. Do a Newsletter Swap or Shout-Out

One of the simplest and most effective tactics.

Each partner features the other in their newsletter with:

  • A short blurb

  • Lead magnet link or call to action

  • Clear value proposition

💬 Example: "If you love our cold email tips, you’ll also enjoy [Partner]'s weekly inbox hacks — sign up here."

Great when you have similarly sized and engaged lists.


3. Guest Content With an Opt-In CTA

Write a guest post, appear on a podcast, or contribute to a YouTube video — and include your lead magnet.

✅ What to include:

  • Quick introduction with credibility

  • Actionable value

  • Mention of your free resource (with link)

  • Optional tracking link or UTM for analytics

Platforms love fresh content — and you gain evergreen exposure.


4. Host a Joint Webinar or Training

This tactic builds trust fast — and lets you co-promote to both lists.

Step-by-step:

  • Choose a focused topic aligned to both audiences

  • Co-brand the registration page and confirmation emails

  • Split promotion responsibilities

  • Deliver valuable, non-salesy content

  • Follow up with replay + bonus content from both brands

Everyone who registers is added to both lists (with proper consent).

SenderWiz tags and automates follow-up flows based on signup and attendance behavior.


5. Cross-Link in Lead Magnets or Thank You Pages

Place your partner’s freebie or tool as a resource inside:

  • Your PDF guide

  • Lead magnet checklist

  • Thank-you page after signup

  • Confirmation email with extra bonuses

It’s low-friction and delivers reciprocal value over time.


6. Partner With Complementary Tools or Platforms

Look beyond competitors. Consider:

  • SaaS companies with overlapping users

  • Niche influencers or creators

  • Course creators or educators

  • Affiliate marketers or consultants

Build partnerships based on:

  • Shared values

  • Content alignment

  • Audience trust

SenderWiz supports tagging and tracking by signup source, helping you identify which partnerships deliver the best quality leads.


7. Create a Shared Resource Hub or Email Series

Build a co-branded resource collection or multi-part email series delivered across both lists.

Examples:

  • “7 Days to Better Deliverability” Series

  • “The Complete Email Toolkit for B2B Marketers”

  • “Cold Outreach Content Vault”

This boosts engagement and increases exposure for both parties.


Best Practices for Cross-Promotion Success

✅ Be transparent with email sharing and consent ✅ Promote partners you genuinely respect ✅ Use UTM parameters to track opt-in performance ✅ Always lead with value, not just an ask ✅ Follow up with real appreciation and collaboration

📉 Avoid:

  • Spamming each other's lists

  • Unclear value propositions

  • One-sided efforts with no follow-through


Real Example: How Cross-Promotion Added 1,800+ Leads

Brands: A cold email SaaS + deliverability consultant Strategy: Co-hosted “Inbox Success Live” 1-hour training Promotion: 3 emails + LinkedIn + Twitter threads

Results:

  • 2,400 signups

  • 75% email open rate post-webinar

  • 1,800 net new subscribers across both brands

  • 11% trial conversions within 7 days

✅ Cross-promotion = reach + results.


Final Thought: Grow Together, Grow Faster

You don’t have to build your email list alone.

With the right partners, you can create win-win campaigns that double your visibility, build credibility, and attract the kind of subscribers who actually want what you offer.

Start small. Collaborate wisely. And always lead with value.

Want to track referral partners, segment co-promoted leads, and automate follow-ups? makes it easy with smart tagging, reply tracking, and built-in tools to keep every list-growth campaign clean and conversion-focused.

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