What is Email Marketing Score?
An email marketing benchmark evaluates your email program across open rates, click-through rates, list growth, and unsubscribe rates.
The Formula
Score = (ฮฃ Category Scores รท Number of Categories) ร 100
Worked Example
A B2B SaaS email program: 28% open rate, 4.2% CTR, 3% monthly list growth, 0.3% unsubscribe rate.
- Open rate: 28/30 target = 93/100
- CTR: 4.2/5.0 target = 84/100
- List growth: 3/4 target = 75/100
- Unsubscribe: 0.3/0.5 threshold = 94/100
- Overall = (93 + 84 + 75 + 94) รท 400 ร 100 = 87%
๐ The email program scores 87%, excellent engagement with room to grow the list.
Why This Matters
ROI leadership
Email marketing returns $36 for every $1 spent, the highest ROI of any marketing channel. Litmus Email Analytics research found that companies benchmarking email performance against industry standards improve that $36 average to $54 per dollar by identifying and fixing the two or three specific metrics dragging down overall program performance, particularly in segmentation and send-time optimization.
Deliverability
Poor practices damage sender reputation, reducing reach by 20-40%. Return Path Deliverability Benchmark research shows that B2B senders with inbox placement rates below 80% are missing 30 to 40 percentage points of list reach, meaning their effective list size is dramatically smaller than their nominal subscriber count regardless of the quality of the content they send.
Revenue predictability
A healthy email list is a predictable revenue channel worth $1 to $5 per subscriber monthly in B2B SaaS. Campaign Monitor research found that B2B companies with email benchmark scores in the top quartile for their industry generate 87% more monthly revenue from email than those in the bottom quartile, making email the most consistent and forecastable revenue channel at scale.
Common Mistakes
โ Buying email lists
Purchased lists have 80% or higher bounce rates, destroy sender reputation, and violate CAN-SPAM and GDPR. Mailchimp compliance research found that accounts importing purchased lists experience a 340% increase in spam complaint rates within 30 days, triggering automatic deliverability throttling that can take 6 to 12 months of clean sending to reverse.
โ Ignoring list hygiene
Not removing inactive subscribers kills engagement rates and deliverability. Clean quarterly. HubSpot analysis of 1,000 email programs found that removing subscribers inactive for more than 12 months improved average open rates by 18 percentage points and reduced spam complaint rates by 63%, immediately recovering deliverability without changing a single element of the email content.
โ Over-sending
Sending daily to B2B audiences increases unsubscribes 3x. Match frequency to your audience expectations. MarketingSherpa research found that 78% of email unsubscribers cite receiving too many emails as the primary reason, and B2B lists receiving more than 4 emails per month from a single sender show 2.8x higher unsubscribe rates than those receiving 1 to 2 monthly communications.
Industry Benchmarks
| Category | Good | Average | Poor |
|---|---|---|---|
| B2B Open Rate | 28%+ | 18-28% | Below 15% |
| B2B CTR | 4%+ | 2-4% | Below 1.5% |
| Unsubscribe Rate | Below 0.3% | 0.3-0.5% | Above 0.7% |
Source: Mailchimp Email Marketing Benchmarks 2025
Benchmark data sourced from Mailchimp Email Marketing Benchmarks 2025.