Documentation-based comparison
Mailjet versus SendGrid
Compare documented scope and conditions. Unknowns remain unknown; different billing units do not establish a cost winner.
What the evidence answers
A reading of reviewed official documentation for Mailjet and SendGrid. It is not a hands-on test, a ranking or a recommendation of one product.
Price
- Mailjet From $9/mo
- Free: no subscription charge
- Starter: $9.00 monthly
- Essential: $19.00 monthly
- Premium: $29.00 monthly
- Custom: Vendor quotation required
- SendGrid From $19.95/mo
- Free Trial: no subscription charge
- Essentials: $19.95 monthly
- Pro: $89.95 monthly
- Premier: Vendor quotation required
Both list prices on the same basis. Compare what each plan includes; the lower amount alone does not make the better choice.
Documented for both
- Sending volume
- Mailjet Free: 6,000 emails per monthStarter: 8,000 emails per monthEssential: 15,000 emails per monthPremium: 15,000 emails per month
- SendGrid Free Trial: 100 emails per dayEssentials: 50,000 to 100,000 emails a monthPro: 100,000 to 2,500,000 emails a month
- Webhooks and events
- Mailjet APIs, SMTP relay and webhooks on Free and paid plans.
- SendGrid Free Trial: 1 event webhookEssentials: 2 event webhooksPro: 5 event webhooksPremier: 5 event webhooks
- Dedicated IP
- Mailjet Premium: available on request from the 100,000-send tier.Custom: One dedicated IP, with the option to buy more
- SendGrid Pro and Premier include dedicated IPs; more can be purchased.Pro: 1 dedicated IP includedPremier: 1 dedicated IP included
- Support
- Mailjet Phone and chat support start from the 50k plans.Free: Online support in the first month onlyStarter: Online supportPremium: Priority support
- SendGrid Access to expert services and personalized support is listed as available for purchase.
- Overage charges
- Mailjet You can keep sending after the plan's emails run out; extra emails are billed per 1,000, at a price the page text does not show.
- SendGrid Sending past the plan's allowance may add overage charges on top of the monthly rate; the rate is not published on the pricing page.
Limits to check
- Mailjet Unused emails do not roll over; they expire at the end of each billing cycle.
- SendGrid The only free option is a 60-day trial at 100 emails a day, not a permanent free plan.
Not verified yet
No reviewed evidence for either product on sender domains.
Documented for one product only, shown in the table below: SendGrid: log retention.
Not verified means our reviewed sources do not establish it. It does not mean a product lacks the capability or that it costs nothing.
Next steps
- Ask Mailjet about sender domains and log retention; our sources do not establish them yet.
- Ask SendGrid about sender domains; our sources do not establish it yet.
| Requirement | Mailjet | SendGrid |
|---|---|---|
| Pricing | From $9/mo | From $19.95/mo |
| Who it is for | Email API, SMTP relay and webhooks, sold in plans that also cover marketing contacts and an email editor. Verified Oct 11, 2026 · Mailjet: official product and plan documentation | Email API for application email, priced by monthly send volume and feature tier. Verified Oct 11, 2026 · SendGrid: official product and plan documentation |
| Coverage limits | Unused emails do not roll over; they expire at the end of each billing cycle. Verified Oct 11, 2026 · Mailjet: official product and plan documentation | The only free option is a 60-day trial at 100 emails a day, not a permanent free plan. Verified Oct 11, 2026 · SendGrid: official product and plan documentation |
| Sending volume |
|
|
| Log retention | Not verified |
|
| Webhooks and events | APIs, SMTP relay and webhooks on Free and paid plans. Verified Oct 11, 2026 · Mailjet: official product and plan documentation |
|
| Dedicated IP | Premium: available on request from the 100,000-send tier. Verified Oct 11, 2026 · Mailjet: official product and plan documentation
| Pro and Premier include dedicated IPs; more can be purchased. Verified Oct 11, 2026 · SendGrid: official product and plan documentation
|
| Support | Phone and chat support start from the 50k plans. The page does not say which plan names qualify. Verified Oct 11, 2026 · Mailjet: official product and plan documentation
| Access to expert services and personalized support is listed as available for purchase. No price is shown. Verified Oct 11, 2026 · SendGrid: official product and plan documentation |
| Overage charges | You can keep sending after the plan's emails run out; extra emails are billed per 1,000, at a price the page text does not show. Verified Oct 11, 2026 · Mailjet: official product and plan documentation | Sending past the plan's allowance may add overage charges on top of the monthly rate; the rate is not published on the pricing page. SendGrid suggests upgrading if you regularly hit the limit. Verified Oct 11, 2026 · SendGrid: official product and plan documentation |
| Coverage note | No daily sending limit. | Additional IPs can be bought as an add-on. More history is available for purchase. Volume is selected at purchase. |
1 requirement without reviewed evidence here
Not verified means the reviewed sources do not establish it; it does not mean a product lacks it or that it costs nothing.
- Sender domains Mailjet: not verified · SendGrid: not verified