If you're comparing Sender.net Affiliate Program vs Mailgun Affiliate, you're likely trying to decide which email marketing platform to promote for maximum recurring revenue. Both platforms offer commission structures that reward long-term customer relationships, but they differ significantly in payout rates, approval friction, and ideal audience match.
This guide breaks down the real numbers so you can make an informed choice.
Commission Comparison: Real Earnings for 1,000 Monthly Clicks
Let's model real publisher earnings across both programs.
Sender.net Affiliate Program: 35% Recurring
- Commission structure: 35% of all monthly subscription fees, for the lifetime of the customer
- Average plan price: ~$20/month (assuming mid-tier users)
- Expected conversion rate: 2–3% (typical for SaaS affiliate traffic)
- Monthly clicks: 1,000
- Conversions: 20–30 customers
- Monthly recurring payout: 20–30 customers × $20 × 35% = $140–$210/month
- Annual recurring: $1,680–$2,520
Mailgun Affiliate: 20% Recurring
- Commission structure: 20% of subscription revenue, lifetime recurring
- Average plan price: ~$25/month (Mailgun skews toward higher-volume users)
- Expected conversion rate: 1.5–2.5% (technical audience, slightly lower volume)
- Monthly clicks: 1,000
- Conversions: 15–25 customers
- Monthly recurring payout: 15–25 customers × $25 × 20% = $75–$125/month
- Annual recurring: $900–$1,500
The gap: Sender.net could generate $600–$1,200 more annually from the same traffic volume, primarily due to the 15-percentage-point commission advantage.
What This Means Over Time
Sender.net's 90-day cookie window captures all customers you send within that period. If you publish consistently, your customer base compounds—meaning month 6, you have 6 months of recurring revenue stacking up. By year 2, a single referral could generate $240+ in annual recurring commissions.
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Cookie Window: 90 Days Each (But Impact Differs)
Both programs use 90-day cookie windows, which means:
- A click you drive is attributed to you for 90 days
- If the visitor converts within that window, you earn commission
- If they convert after 90 days, you don't receive credit
Publisher perspective: 90 days is solid for B2B SaaS (where decision timelines are longer than e-commerce). Most users who trial an email platform decide within 30–60 days, so you're unlikely to lose many conversions to the window expiring.
Advantage: Tie. Both are equally fair here. However, Sender.net's higher base commission means each attributed conversion is worth more, so the 90-day window effectively rewards you more in absolute dollars.
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Network & Reliability: In-House Infrastructure for Both
Both Sender.net and Mailgun run their affiliate programs in-house rather than through third-party networks like Refersion, Impact, or Tapfiliate.
Sender.net's Affiliate Infrastructure
- Tracking: First-party tracking (generally reliable)
- Dashboard: Custom-built affiliate portal with real-time commission tracking
- Reporting: Monthly or on-demand
- Payout method: Primarily PayPal, Wise, or direct bank transfer
- Payout frequency: Monthly (net 30)
- Known issues: Minimal (smaller program = fewer historical complaints)
Mailgun's Affiliate Infrastructure
- Tracking: Mature, battle-tested with enterprise clients
- Dashboard: Partner portal with detailed analytics
- Reporting: Real-time, with segmentation by customer tier
- Payout method: PayPal, ACH, wire transfer
- Payout frequency: Monthly (net 30)
- Known issues: Occasional payment delays reported by publishers (rare but documented)
Reliability winner: Sender.net — fewer moving parts and no historical payout complaints. Mailgun is also reliable, but its larger scale occasionally introduces processing friction.
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Approval Requirements: Easy vs. Medium Difficulty
Sender.net Affiliate Program: Easy Approval
What you need:
- A website or newsletter with clear traffic/audience metrics
- At least 500 monthly unique visitors (soft requirement)
- An email address and basic contact info
- Honest use case (e.g., "I write about email marketing for SaaS founders")
Approval timeline: 24–48 hours
Rejection reasons: Spam-heavy sites, content farms, or no discernible audience
Takeaway: If you have any legitimate publishing channel (blog, YouTube, newsletter, Twitter), you'll likely be approved. Sender.net incentivizes volume and actively recruits publishers.
Mailgun Affiliate: Medium Approval
What you need:
- Established online presence (3–6 months of history, preferably)
- Developer-focused or technical audience
- Detailed explanation of your traffic sources and promotion methods
- Portfolio of previous content (they'll review your site)
Approval timeline: 3–7 days
Rejection reasons: Insufficient audience evidence, non-technical positioning, or weak content quality
Takeaway: Mailgun vets more carefully because their typical customer is a CTO or senior engineer. They want affiliates who understand their product deeply and can write credibly about API integrations, webhook handling, and uptime SLAs.
Advantage: Sender.net — faster, easier approval means you can start earning sooner and with less friction.
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Features & Program Highlights
Sender.net Affiliate Program Standouts
1. Marketing-first approach — Sender.net provides email swipes, graphics, landing page copy, and pre-written social posts 2. No minimum traffic requirement — Bootstrapped publishers welcome 3. Affiliate success team — Responsive to questions; will co-market if your audience is relevant 4. Promotional calendar — Advance notice of seasonal campaigns (Black Friday, New Year, etc.)
Mailgun Affiliate Standouts
1. Technical credibility — Aligned with developer-focused platforms (Twilio ecosystem, etc.) 2. Higher-ticket customers — Individual referrals can be worth $50–$150/month depending on usage tier 3. Enterprise opportunities — If you refer a mid-market company, your recurring commission scales with their usage 4. API documentation — Affiliates get beta access to new features for review
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Publisher Fit: When to Promote Each
Promote Sender.net Affiliate Program When:
1. Your audience is cost-conscious SMBs or solopreneurs — Writers, coaches, consultants, and freelancers who want affordable email marketing without enterprise overhead 2. You publish content about bootstrapping, side hustles, or lean startups — Sender.net's budget positioning aligns perfectly with this mindset 3. You want recurring revenue with minimal audience qualification — No need to prove technical expertise; honest promotion to your actual readers works
Promote Mailgun Affiliate When:
1. Your readers are developers, engineers, or DevOps professionals — They value reliability, uptime, and API-first architecture over price 2. You write technical tutorials or developer guides — Content about email validation, bounce handling, or webhook systems naturally leads to Mailgun 3. You already have credibility in the technical SaaS space — You can justify the longer approval process by demonstrating deep product knowledge
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FAQ
Q1: Do I need to use the product myself to get approved?
Sender.net: No. If you have audience evidence, you're in. Many affiliates get approved with just a blog and newsletter.
Mailgun: Not required, but it helps. Reviewers look for evidence that you understand email infrastructure. Reading their docs and understanding SMTP/API concepts improves your odds.
Our take: Both programs prefer affiliates with real product knowledge, but Mailgun enforces this more strictly.
Q2: How long does it take to make real money?
Sender.net: 3–6 months of consistent promotion typically yields $200–$400/month in recurring commission.
Mailgun: 6–12 months, since approval is slower and conversion rates are lower (smaller addressable audience).
Our take: Sender.net's faster path to meaningful income makes it better for new publishers testing affiliate models.
Q3: Can I promote both simultaneously?
Yes. Segment your audience by needs:
- Technical readers → Mailgun (higher relevance, higher conversions)
- Non-technical, budget-conscious readers → Sender.net (higher approval, higher payouts)
You'll likely generate more total revenue than choosing one exclusively.
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Final Recommendation
For most publishers: Start with Sender.net Affiliate Program. Higher commission, easier approval, and faster path to meaningful recurring revenue make it the logical first choice.
Add Mailgun once your audience grows and you develop technical credibility. The 20% commission is lower, but the higher-ticket customers and alignment with developer content create a sustainable second income stream.
The Sender.net Affiliate Program vs Mailgun Affiliate choice isn't really either/or—it's about matching the right product to the right reader segment and building multiple revenue streams simultaneously.
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