OquMail vs Mailjet: Free Business Email vs Email Marketing Platform

Mailjet is a marketing and transactional email platform: it sends newsletters and app mail from your domain, but it does not give you an inbox. OquMail is the opposite: free mailboxes on your domain with a small send API attached. Businesses compare them because both promise "email on your domain" and mean different things by it.

Quick summary

• Mailboxes: Mailjet none; OquMail up to 15 free
• Free plan: Mailjet a free tier with a daily send cap and branding; OquMail free plan with 3 domains and 5 GB per mailbox
• API: Mailjet full sending API, templates, campaign tools; OquMail send API with from, to, subject and html
• DNS guidance: Mailjet SPF and DKIM for sending; OquMail MX, SPF, DKIM and DMARC with live verification
• IMAP/SMTP: Mailjet SMTP relay for sending only; OquMail IMAP and SMTP for reading and sending in any client

Who each is for

Mailjet is for teams that send campaigns and high-volume transactional mail and want a shared template editor, analytics and SMTP relay. OquMail is for small businesses that need name@yourdomain.com for their people first, and a simple API for order confirmations and alerts second.

Feature comparison

• Mailboxes: Mailjet none; OquMail up to 15 free
• Free plan: Mailjet a free tier with a daily send cap and branding; OquMail free plan with 3 domains and 5 GB per mailbox
• API: Mailjet full sending API, templates, campaign tools; OquMail send API with from, to, subject and html
• DNS guidance: Mailjet SPF and DKIM for sending; OquMail MX, SPF, DKIM and DMARC with live verification
• IMAP/SMTP: Mailjet SMTP relay for sending only; OquMail IMAP and SMTP for reading and sending in any client
• Storage: Mailjet stores contacts and stats; OquMail stores your mail, 5 GB per mailbox

Where Mailjet wins

• Newsletter builder with collaboration, roles and approval flows
• Volume: built for tens of thousands of messages a day
• Campaign analytics, A/B testing, segmentation and contact lists
• EU hosting and a mature deliverability team

Where OquMail wins

• Real inboxes with webmail and IMAP so replies reach a human
• Free for 15 mailboxes and 3 domains, no credit card
• Guided MX, SPF, DKIM and DMARC with live status
• Per-message delivery logs that show the receiving server's response

Total cost at 5 and 15 users

Mailjet charges by email volume, not by seat, with paid tiers for higher volume and extra user logins on some plans; it never covers staff mailboxes. OquMail is free at 5 and 15 users. A small business often ends up with both: OquMail for the team, Mailjet on a subdomain for campaigns once the list is large enough to justify it.

The free third option: OquMail

OquMail handles the part Mailjet does not: 15 mailboxes on your domain with IMAP and webmail, plus a send API that covers receipts and notifications at modest volume. If you later add Mailjet for newsletters, keep it on news.yourdomain.com so the campaign reputation stays separate from your everyday mail.

• Free plan: up to 15 mailboxes, 3 domains, 5 GB per mailbox, no credit card
• Webmail included; IMAP/SMTP for Outlook, Apple Mail, Thunderbird and phones
• IMAP mail.oqumail.com port 993 (SSL/TLS); SMTP mail.oqumail.com port 587 (STARTTLS)
• Guided SPF, DKIM and DMARC with live DNS verification; MX is mail.oqumail.com priority 10
• Transactional send API at https://api.oqumail.com/api/v1/emails with Bearer API keys (from, to, subject, html)
• Per-message delivery logs so you can see the exact response a receiving server gave

Verdict by scenario

• Company sending a weekly newsletter to thousands: Mailjet
• Small business that needs staff inboxes and order emails: OquMail
• Developer wiring high-volume transactional mail into an app: Mailjet
• Startup that wants to start free and add a campaign tool later: OquMail first

Common questions

Can Mailjet give me an email address?

No. You bring a domain and authenticate it; Mailjet sends from it but hosts no mailbox. You need OquMail or another host to receive and read mail.

Can OquMail send newsletters?

The send API is built for transactional mail such as receipts and alerts. For bulk marketing, use a campaign platform on a subdomain.

Do I need both?

Many small businesses do. Start with OquMail for mailboxes and low-volume transactional mail, and add Mailjet when you have a real subscriber list.

How do I set up Mailjet on a subdomain next to OquMail?

Keep OquMail's MX, SPF, DKIM and DMARC on the root domain. Create news.yourdomain.com, add Mailjet's SPF and DKIM records there, and publish a DMARC record for the subdomain too. Replies can use a reply-to address on the root domain so they land in an OquMail mailbox your team reads.