MailerSend and Mailjet are email sending services for developers, ecommerce teams and marketers who send from apps. MailerSend is built for app email and leaves newsletters to MailerLite. Mailjet is built for campaigns and app email from one login. Developers and online stores suit MailerSend, while marketing teams that also send app mail suit Mailjet.
by Vercom
Pricing: Free 500 emails/mo; Hobby $6.30/mo for 5,000; Starter from $31.50/mo and Professional from $99/mo at 50,000 emails, billed yearly; Enterprise above 2M emails
MailerSend is an EU-hosted transactional email service with API and SMTP relay, inbound routing, webhooks, templates, SMS and WhatsApp add-ons and a free plan.
Pricing: Free up to 6,000 emails/mo; Essential from $17/mo (15,000 emails) to $37/mo (50,000); Premium from $27/mo (15,000 emails) to $250/mo (250,000).
Mailjet is email marketing and a transactional email API on one platform from Sinch, with a drag-and-drop editor, SMTP and REST sending and EU-hosted data.
Transactional Email Services features side-by-side
Free 500 emails/mo; Hobby $6.30/mo for 5,000; Starter from $31.50/mo and Professional from $99/mo at 50,000 emails, billed yearly; Enterprise above 2M emails
Free up to 6,000 emails/mo; Essential from $17/mo (15,000 emails) to $37/mo (50,000); Premium from $27/mo (15,000 emails) to $250/mo (250,000).
Choose MailerSend if you send resets, receipts and order emails from an app and want SMS or WhatsApp messages beside them. Choose Mailjet if you run newsletters and app email together. Both start on a free plan, then move to monthly paid plans, with higher plans sold by quote.
Developers sending password resets or order emails are the core MailerSend audience. It ramps volume on a new dedicated IP automatically, so a fresh address does not need a schedule you write yourself. It also accepts a send-at time on the API, which queues a message for later delivery. Newsletter and broadcast sending live in MailerLite, a separate product that MailerSend sits beside.
A team that runs newsletters and app email together will find Mailjet built for both under one login. It keeps transactional and campaign traffic on separate streams, so one cannot hurt the other's reputation. A test mode lets developers try API calls with no mail actually sent. Automation workflows that start from a signup or a behavior arrive only on higher tiers.
MailerSend's users value quick, personal support. They also like its smooth developer experience. Complaints describe an account paused over spam reports, with few details and a slow way back. New-account approval is also strict and can take more than one attempt. Mailjet's reviewers like the drag-and-drop builder, good value including a usable free tier, and straightforward setup. They complain about suspended accounts or lowered limits without a clear reason. Template flexibility is limited, and support is slow when a problem is serious.
MailerSend describes a no-code school teaching app building, which sends course confirmations, password resets and renewals by email, and deliverability is no longer a concern for it. One Mailjet customer, a mobile dating app with a large international user base, sends onboarding emails and multilingual campaigns. It builds messages in a few clicks while keeping a coherent design.
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