Mailjet vs Sendy Comparison 2026
Mailjet is a hosted subscription, free for 6,000 emails a month with unlimited contacts, then $9 a month for 8,000 and $27 a month for 15,000. Sendy is self-hosted software bought once for $69, sending through Amazon SES at roughly $1 to $1.60 per 10,000 emails. At 15,000 emails a month, Mailjet costs $27 while Sendy's SES bill for the same volume runs under $2.50 a month after the one-time purchase, once a server is running. Mailjet needs no setup at all; Sendy needs a server and Amazon SES configured first.
Send-based email pricing with a real free tier
Self hosted sending on top of Amazon SES
At a glance
- Mailjet starts cheaper, at $9.
- Only Mailjet has a free tier.
Side by side
Mailjet | Sendy | |
|---|---|---|
| Starting price (they differ) | From $9 | From $69 |
| Pricing model (they differ) | Free plan, paid tiers | One-time purchase |
| Free tier (they differ) | Yes | No |
| Billing (they differ) | Monthly or annual | One-time purchase |
| Free trial | Not stated | Not stated |
| API | Yes |
Mailjet
Send-based email pricing with a real free tier
Mailjet meters emails sent rather than contacts held, and its free tier carries six thousand a month, which is enough to run a small list indefinitely. Marketing campaigns and transactional sending share one account and one sending reputation. Contacts are uncapped on every plan including the free one, so a large dormant list costs nothing. Editing is collaborative, which is unusual here and is the reason teams pick it over a cheaper single-seat tool.
Our note
Compare on emails a month rather than subscribers, because that is the axis this prices on and it is the reverse of most of the category. The free tier is genuinely permanent, which makes it a better first choice than a trial-only tool if you are not yet sure the newsletter will stick.
Sendy
Self hosted sending on top of Amazon SES
Sendy is a PHP application you install on your own server, which then sends through Amazon SES at Amazon's rates rather than at a newsletter platform's. You buy the software once. At a list size where a hosted platform starts charging hundreds a month, the arithmetic is what people come for, and the cost is that hosting, deliverability and upgrades are now yours.
Why people weigh these two
- Sendy instead of Mailjet
- Sendy is a one-time $69 purchase that you run yourself on Amazon SES, for someone who would rather own the server than pay a monthly seat.
- Mailjet instead of Sendy
- Mailjet prices on sends with a real free tier, paid from $9.
Which one should you pick
Pick Mailjet if you want a working tool today with no server to maintain, and your volume sits under about 15,000 emails a month where the free and cheap tiers already fit. Collaborative editing is also a real advantage for a team working the same template together.
Pick Sendy once the list is large enough that Mailjet's monthly bill has become real money and you are willing to run a server yourself. Sixty nine dollars once covers the software, and Amazon SES charges roughly $1 to $1.60 per 10,000 emails after that, which undercuts Mailjet by a wide margin at real scale, matching Sendy's own guidance that the arithmetic favours it above about ten thousand subscribers.
Common questions
- Which is cheaper at 15,000 emails a month?
- Sendy, once the one-time $69 is paid off, since Amazon SES charges only a few dollars a month for that volume. Mailjet's equivalent tier costs $27 a month ongoing, which adds up over a year far faster than Sendy's near-free marginal cost.
- Do I need to run a server for either of these?
- Only for Sendy, which is self-hosted software requiring your own server and a configured Amazon SES account. Mailjet is fully hosted, so no server or SES setup is needed to start sending.
- Is Sendy really a one-time purchase?
- Yes, $69 once for the software itself, with updates free within a major version. Sending is billed separately by Amazon SES at its own published rate rather than by a recurring Sendy subscription.
- Which one supports team collaboration on a template?
- Mailjet does, letting more than one person edit the same template at once, which is unusual in this category. Sendy is built around one operator running the software on their own server rather than a team working together in real time.
Ratings are the average of reviews readers left. The facts are stated by each tool’s own listing and are not verified by CloutStack. How we make money.