OquMail vs Resend: Free Business Email vs Developer Email API

Resend is the email API developers reach for in a Next.js project: clean SDKs, React Email templates and a generous free tier. OquMail is a free business email host with mailboxes and a small send API. Startups compare them when they realise transactional sending and staff inboxes are two separate problems.

Quick summary

• Mailboxes: Resend none; OquMail up to 15 free
• Free plan: Resend a free tier with a monthly and daily send cap; OquMail free plan with 3 domains and 5 GB per mailbox
• API: Resend SDKs for many languages, React Email, Broadcasts; OquMail send API with from, to, subject and html
• DNS guidance: Resend DKIM and Return-Path records with verification; OquMail MX, SPF, DKIM and DMARC with live verification
• IMAP/SMTP: Resend SMTP relay for sending; OquMail IMAP and SMTP for any mail client

Who each is for

Resend is for engineering teams that want to write emails as code, send from their app with a modern SDK and use webhooks for events. It assumes a developer owns email in your company and that inboxes are someone else's problem. OquMail is for small businesses and early startups that need name@yourdomain.com for the team and a simple HTTP call for receipts, both free, with DNS guidance for non-experts. It assumes the founder is setting things up alone and wants one dashboard.

Feature comparison

• Mailboxes: Resend none; OquMail up to 15 free
• Free plan: Resend a free tier with a monthly and daily send cap; OquMail free plan with 3 domains and 5 GB per mailbox
• API: Resend SDKs for many languages, React Email, Broadcasts; OquMail send API with from, to, subject and html
• DNS guidance: Resend DKIM and Return-Path records with verification; OquMail MX, SPF, DKIM and DMARC with live verification
• IMAP/SMTP: Resend SMTP relay for sending; OquMail IMAP and SMTP for any mail client
• Storage: Resend event logs by plan; OquMail 5 GB per mailbox with per-message delivery logs

Where Resend wins

• React Email lets front-end teams build templates in the codebase
• SDKs, webhooks and documentation designed for developers
• Broadcasts for simple newsletters from the same account
• Higher volume ceilings on paid plans

Where OquMail wins

• Real mailboxes with webmail and IMAP so replies are read by a person
• Free for 15 mailboxes and 3 domains with no card
• Full inbound setup: MX plus SPF, DKIM and DMARC verified in one place
• Delivery logs with the receiving server's response, no webhook needed

Total cost at 5 and 15 users

Resend bills by monthly volume, so team size does not matter, but it includes no mailboxes; 5 or 15 staff still need a host. OquMail is free at both sizes and covers low-volume transactional mail. Many startups run OquMail for inboxes and Resend for app mail, both authenticated on the same domain.

The free third option: OquMail

OquMail's API is deliberately minimal and language-agnostic: one POST with a Bearer key and a four-field JSON body. It suits a small product's signup and receipt emails. If you want React Email templates and webhooks, use Resend for sending and keep the team's mailboxes on OquMail.

• 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

• TypeScript product with emails maintained as React components: Resend
• Small business that needs inboxes plus order confirmations: OquMail
• Startup wanting one free vendor to begin with: OquMail
• Growing SaaS: OquMail for people, Resend for the app

Common questions

Can Resend receive email into an inbox?

Resend is built for sending. For a mailbox that staff log into via webmail or IMAP, use an email host such as OquMail.

Can I use both on one domain?

Yes. OquMail owns the MX records (the settings that tell the internet where to deliver email for your domain) and inbound mail; Resend gets its own DKIM selector for outbound app mail. Include both in the single SPF record.

Does OquMail have webhooks?

No. Delivery status is shown in the per-message logs in the dashboard rather than pushed to your app.

Which should a solo founder set up first?

OquMail. Create hello@ and your own address, verify the four DNS records and you have credible email for customers and investors on day one. Add Resend when the product needs templated app mail and event webhooks; at that point you already own an authenticated domain, so the extra DKIM record takes minutes.