Warmup Inbox vs Mailjet: Which Should You Choose in 2026?
Choosing between Warmup Inbox and Mailjet comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Warmup Inbox
Improve email deliverability and avoid spam folders by warming up your inbox.
Best for you if:
- • Automatically warms up email inboxes to improve deliverability.
- • Builds sender reputation by simulating natural email activity with a network of real inboxes.
Mailjet
Email marketing and transactional email
Best for you if:
- • You want the higher-rated option (8.1/10 vs 0.0/10)
- • You want to try before committing
- • Mailjet is an email delivery platform for transactional and marketing emails
- • It provides email API, campaign builder, and real-time analytics
| At a Glance |  Warmup Inbox |  Mailjet |
|---|---|---|
Price | Paid | Free + Paid |
Best For | Email Marketing | Email Marketing |
Rating | —/100 | 81/100 |
| Feature | Warmup Inbox | Mailjet |
|---|---|---|
| Pricing Model | Paid | Freemium |
| Editorial Score | — | 81 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Email MarketingEmail Deliverability | Email MarketingMarketing Automation |
How Warmup Inbox and Mailjet Compare
Warmup Inbox
Improve email deliverability and avoid spam folders by warming up your inbox.
Paid
Mailjet
Email marketing and transactional email
Free tier available · 81/100 score
Who Should Use What?
On a budget?
Mailjet has a free tier. Warmup Inbox is paid only.
Go with: Mailjet
Want the highest-rated option?
Mailjet scores 81/100. Warmup Inbox is unrated.
Go with: Mailjet
Value user reviews?
Neither has user reviews yet.
Go with: Mailjet
3 Questions to Help You Decide
What's your budget?
Warmup Inbox is paid. Mailjet is freemium. Mailjet lets you start free.
What's your use case?
Both are email marketing tools. Compare their specific features to decide.
How important are ratings?
Not all tools have been rated yet.
Key Takeaways
Mailjet
- Higher score: 81/100 vs unrated
- Free tier available
- Our pick for this comparison
Warmup Inbox
The Bottom Line
Mailjet (81/100) is our pick.
Frequently Asked Questions
Is Warmup Inbox or Mailjet better?
Mailjet scores 81/100 in our evaluation. Warmup Inbox is paid and Mailjet is freemium.
What are Warmup Inbox and Mailjet used for?
Warmup Inbox: Improve email deliverability and avoid spam folders by warming up your inbox.. Mailjet: Email marketing and transactional email.
What does Warmup Inbox cost vs Mailjet?
Warmup Inbox is a paid tool. Mailjet is freemium (free tier + paid plans). Visit their websites for detailed pricing.