Get started ->
Resend

Ackuna vs Resend

Ackuna vs Resend side by side - monthly price at 10,000 to 300,000 emails, newsletters, SMTP relay, inboxes for AI agents, log history and free plans.

Start with Ackuna ->View pricing
Price at the same volume

Ackuna vs Resend: monthly price

The cheapest plan on each side that covers the volume, billed monthly, in US dollars before tax. Ackuna's allowance is shared by newsletters, the SMTP relay and Agent Mail.

Emails a monthAckunaResend
10,000$19Builder, 60,000 included$20Pro, 50,000 included
50,000$19Builder, 60,000 included$20Pro, 50,000 included
100,000$59Scale, 200,000 included$35Pro, 100,000 included
300,000$149Startup, 500,000 included$350Scale, 500,000 included

Resend prices from Resend's pricing page, checked on 12 November 2026. Prices change: check the vendor's page before you decide. The lower price in each row is highlighted.

Feature by feature

What each plan includes

FeatureAckunaResend
Free plan3,000 relay, 3,000 Agent Mail and 2,500 newsletter emails a month3,000 emails a month, at most 100 a day
Over the monthly allowanceNo overage charges: move to the next plan$0.90 per 1,000 on Pro, if you turn overage on
Newsletters (campaigns, lists, analytics)Included on every plan, from the same allowanceSeparate marketing plan priced by contacts: from $40 a month for 5,000
Receiving emailAgent Mail inboxes receive mail on every planYes, on every plan; received mail counts against the quota
Inboxes with an API (apps, AI agents)Agent Mail: 3 inboxes on Free, 25 on Builder, 100 on ScaleInboxes with an API, 3 on every plan, $1 a month for each extra one
SMTP relayYes, credentials per verified domainYes
Sending domains1 on Free, 10 on Builder, 50 on Scale, 250 on Startup3 on Free, 10 on Pro, 1,000 on Scale
Message log history30 days on Builder, 90 on Scale, 180 on Startup (3 on Free)30 days
Dedicated IPNot offered$30 a month add-on on Scale

The short answer

Resend is an email API for developers, with marketing email sold as a separate plan priced by contacts. Ackuna puts newsletters, an SMTP relay and inboxes for AI agents on one plan, with one monthly email allowance shared between them.

On price, the two are close for small volumes: Ackuna Builder is $19 a month for 60,000 emails, Resend Pro is $20 for 50,000. At about 100,000 transactional emails a month Resend is cheaper ($35 against Ackuna Scale at $59). At 300,000 Ackuna Startup ($149) costs well under half of Resend Scale ($350). Once you also send newsletters, Ackuna includes them; on Resend they are an extra plan from $40 a month.

Where Ackuna costs less

  • Newsletters are included. Every Ackuna plan has campaigns, contact lists and delivery analytics, drawn from the same allowance as your product email. Builder includes 5,000 contacts. On Resend the marketing plan starts at $40 a month for 5,000 contacts, on top of the sending plan.
  • High volume. At 300,000 emails a month the cheapest Resend plan that covers it is Scale at $350; Ackuna Startup covers 500,000 for $149.
  • Log history. Builder keeps the relay message log for 30 days, Scale for 90 and Startup for 180. Resend keeps 30 days on every self-serve plan.

Where Resend is the better fit

  • Only transactional mail at around 100,000 a month. Resend Pro at $35 is cheaper than Ackuna Scale at $59 if you will never send newsletters.
  • A dedicated IP. Resend sells one as an add-on on Scale. Ackuna does not offer dedicated IPs; all mail goes through shared, monitored sending infrastructure.
  • Overage instead of upgrading. Resend can bill extra emails at $0.90 per 1,000 if you turn overage on. Ackuna has no overage charges: when the monthly allowance is used, you move to the next plan.

One plan for three kinds of email

With Ackuna, the mail your product sends (password resets, receipts, notifications) goes through the SMTP relay, your newsletters go through Newsletters, and your AI agents get their own inboxes with a REST API and webhooks in Agent Mail. All three use the same verified domain and the same suppression list, so an address that bounced in one is never retried in another.

Moving from Resend

  1. Add your sending domain in Ackuna and publish the SPF, DKIM and DMARC records it gives you. Check them with the free email DNS check, or build them with the SPF record generator and the DMARC record generator.
  2. Create SMTP credentials and point your app at the relay. The SMTP setup guides cover common apps.
  3. Keep both running for a few days and compare delivery before you switch fully.

New accounts start on lower daily limits until Ackuna has reviewed them, so plan a short overlap for a large volume.

Free tools

Check your domain's email DNS

Moving off Resend? Check the SPF, DKIM and DMARC records of the domain you send from before the switch: a record that still points at the old provider is the most common reason mail lands in spam after a move. Free, no account needed.

Email DNS CheckSPF, DMARC, MX and DKIM for one domain in one run, graded A to F, with the first thing to fix at the top.Run the check ->SPF Record CheckerLook up a domain's SPF record, count its DNS lookups against the limit of 10, and see every include it pulls in.Run the check ->DKIM Record CheckerLook up a domain's DKIM key by selector, or try the common selectors, and see the key size, revoked keys and testing flags.Run the check ->DMARC Record CheckerLook up a domain's DMARC policy, see whether it only monitors or really protects, and where the reports go.Run the check ->SPF Record GeneratorSwap Resend's include for your new provider's and get one valid SPF record, merged with the one you have.Open the generator ->

All free email tools ->

Related pages
Ackuna vs PostmarkRead more ->Ackuna vs SendGridRead more ->Ackuna vs MailgunRead more ->Transactional Email PricingRead more ->Ackuna pricingRead more ->
FAQ

Questions teams ask before switching

Is Ackuna affiliated with Resend?

No. This is an independent comparison. Resend and its product names belong to their owner.

Are the Resend prices current?

They come from Resend's public pricing page on the date shown under the price table, billed monthly in US dollars before tax. Prices change, so check Resend's page before you decide.

Does Ackuna charge for emails over the plan?

No. Ackuna has no overage charges. When the monthly allowance is used, you upgrade to the next plan; nothing is billed after the fact.

Can Ackuna receive email like Resend?

Yes, through Agent Mail: each inbox has its own address, receives mail and exposes it over a REST API and signed webhooks. The SMTP relay itself is for sending.

Why does a new Ackuna account have lower limits?

To protect the shared sending reputation, a new account can send at most 20 Agent Mail, 200 relay and 500 newsletter emails a day until Ackuna has reviewed it. After the review the plan limits apply.

Start sending in minutes

All three services free every month: 2,500 newsletter, 3,000 relay and 3,000 Agent Mail emails. No credit card required - upgrade only when your volume does.

Create free account ->Talk to sales