What the evidence answers

A reading of reviewed official documentation for Mailjet and SMTP2GO. 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
  • SMTP2GO From $15/mo
    • Free: no subscription charge
    • Starter: $15.00 monthly
    • Starter: $150.00 annual ($12.50/mo equivalent)
    • Professional: $75.00 monthly
    • Professional: $750.00 annual ($62.50/mo equivalent)
    • 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
SMTP2GO Free: 1,000 emails per monthStarter: 10,000 emails per monthProfessional: 100,000 emails per monthPremier: More than 3,000,000 emails a month
Dedicated IP
Mailjet Premium: available on request from the 100,000-send tier.Custom: One dedicated IP, with the option to buy more
SMTP2GO Professional: Dedicated IP address included
Support
Mailjet Phone and chat support start from the 50k plans.Free: Online support in the first month onlyStarter: Online supportPremium: Priority support
SMTP2GO Starter: ticket, chat and phone support.Free: Ticket support; toll-free phone and live chat for the first 14 days onlyProfessional: Ticket, chat and phone support
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.
SMTP2GO Free: Extra emails are not permitted on Free.

Limits to check

  • Mailjet Unused emails do not roll over; they expire at the end of each billing cycle.
  • SMTP2GO The free plan is limited to 200 emails a day and does not allow extra emails.

Not verified yet

Every compared requirement has evidence for at least one.

Documented for one product only, shown in the table below: Mailjet: webhooks and events; SMTP2GO: sender domains and 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 SMTP2GO about webhooks and events; our sources do not establish it yet.
Documented scope and limits; unverified dimensions remain unknown.
RequirementMailjetSMTP2GO
Pricing
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 delivery for transactional email from apps, everyday email from Outlook and marketing email with an unsubscribe link.

Verified Oct 11, 2026 · SMTP2GO homepage

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 free plan is limited to 200 emails a day and does not allow extra emails.

Verified Oct 11, 2026 · SMTP2GO pricing, loaded monthly plan cards

Sending volume
  • Free 6,000 emails per month
  • Starter 8,000 emails per month
  • Essential 15,000 emails per month
  • Premium 15,000 emails per month
  • Free 1,000 emails per month
  • Starter 10,000 emails per month
  • Professional 100,000 emails per month
  • Premier More than 3,000,000 emails a month
Sender domainsNot verified
SPF and DKIM are set up automatically for your sending domains.

Verified Oct 11, 2026 · SMTP2GO homepage

Log retentionNot verified
  • Free 5 days of email reporting
  • Starter 30 days of email reporting
  • Professional 30 days of email reporting
Webhooks and events
APIs, SMTP relay and webhooks on Free and paid plans.

Verified Oct 11, 2026 · Mailjet: official product and plan documentation

Not verified
Dedicated IP
Premium: available on request from the 100,000-send tier.

Verified Oct 11, 2026 · Mailjet: official product and plan documentation

  • Custom One dedicated IP, with the option to buy more
  • Professional Dedicated IP address included
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

  • Free Online support in the first month only
  • Starter Online support
  • Premium Priority support
Starter: ticket, chat and phone support.

Verified Oct 11, 2026 · SMTP2GO: official product and plan documentation

  • Free Ticket support; toll-free phone and live chat for the first 14 days only
  • Professional Ticket, chat and phone support
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

  • Free Extra emails are not permitted on Free.
Coverage note

No daily sending limit.

At the default volume shown.

Choose two or three products.