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Notix vs MailerSend.

MailerSend is the vendor closest to Notix in shape: a transactional email API with templates, an SMTP relay on every plan and signed webhooks. The comparison therefore comes down to numbers and to what sits beside the send. MailerSend has the cheapest paid plan on this site and sells address verification; Notix includes 50,000 emails at $15, adds an OTP API and a pre-send deliverability check, a 99.9% SLA on Pro, and can be paid from a naira or shilling wallet.

At a glance

The two services, criterion by criterion.

MailerSend's figures were read from its pricing page and help centre on 2026-09-13; the date is repeated under the table. Notix figures come from its own pricing page.

Figures read from www.mailersend.com on 2026-09-13; Notix figures come from its own pricing page.
Criterion	MailerSend	Notix
Free tier	500 emails a month, 1 domain, 100 API requests a day, 1 webhook, 1 template	5,000 emails a month, 200 a day, no card, no end date
Entry paid plan	Hobby $5.60 a month billed yearly ($67.20 a year); $7 month to month	Pro $15 a month
Included on that plan	5,000 emails a month, then $1.50 per extra 1,000 (Starter: 50,000 for $35, $0.90 per extra 1,000)	50,000 emails, usage past that metered on the same invoice
SMTP relay	Yes, on every plan including Free	Yes, on every plan
SDKs	Node, PHP, Laravel, Python, Ruby, Go, Java	TypeScript, Python, Go, PHP
Webhooks	Yes, HMAC-SHA256 signed; 1 on Free and Hobby, 50 on Starter	Yes, signed, for email, contact and domain events
OTP / verification API	No	Yes, email and SMS codes
Deliverability check before sending	Email address verification as an add-on ($0.01 per address for the first 5,000; 10 credits on Free)	Yes, a pre-send check API
Billing outside USD	USD by card (EUR and GBP shown for information only)	USD by card; naira and shillings from a prepaid wallet
SLA	99.5% on Professional and above	99.9% on Pro, credits on the pricing page
Prices and limits read from the vendors' own pages: www.mailersend.com on 2026-09-13. Notix figures are from its own pricing page.

Pricing.

MailerSend Free is 500 emails a month on one domain, with 100 API requests a day, one webhook and one template. Hobby is $5.60 a month billed yearly, or $7 month to month, for 5,000 emails and $1.50 per extra 1,000; Starter is $35 for 50,000 and $0.90 per extra 1,000. Notix Free is 5,000 emails a month and 200 a day with no card and no end date; Pro is $15 for 50,000 emails, with usage past that metered on the same invoice at the rate on the pricing page. Under 5,000 emails a month MailerSend is cheaper to pay for; at 50,000 the gap is $20 a month the other way.

Sending API.

Both take a JSON body with a template id and variables, and both offer an SMTP relay on every plan including Free. MailerSend has a bulk endpoint, personalisation per recipient and scheduled delivery. Notix has batch and scheduled sends on the same endpoint family and an idempotency key on every request so a retry cannot double-deliver; its email API also covers contacts, templates and campaigns under one key. A plain transactional send moves between them after a client swap.

Deliverability tooling.

MailerSend sells address verification as an add-on, $0.01 per address for the first 5,000 credits and less at volume, with ten credits on Free, and offers dedicated IPs at $50 a month to Professional and Enterprise accounts sending over 100,000 emails a week. Notix has a deliverability check you call before a send, which returns a score and the findings that would block delivery, and a suppression list shared across transactional and marketing mail. The transactional email API page describes both. MailerSend cleans lists; Notix checks messages. Both verify domains with SPF, DKIM and DMARC and report bounces and complaints.

Beyond email.

MailerSend sells transactional SMS and WhatsApp messaging, with United States and Canadian phone numbers at $2 a month each. Notix has an OTP API that delivers and checks codes by email or SMS, and SMS sending in Nigeria and Kenya prepaid from a wallet, with your own sender ID once approved. Neither covers the other's region, so this row is decided by where your users are.

SDKs.

MailerSend publishes official SDKs for Node, PHP, Laravel, Python, Ruby, Go and Java. Notix publishes TypeScript, Python, Go and PHP, and everything else uses the JSON endpoint with a plain HTTP client, as the docs show for curl. Ruby and Java teams get a typed client from MailerSend and not from Notix. For the four languages both cover, the clients are interchangeable in shape.

One-time codes.

MailerSend delivers the message you compose, so a sign-in or verification code means generating it, storing it with an expiry, counting attempts and rate-limiting the sender in your own code. Notix has a verification API that does all of that in two calls, by email or by SMS, with risk scoring before anything goes out. If codes are part of your product, this row is the largest difference between two otherwise similar services.

Billing regions.

MailerSend shows prices in dollars, euros and pounds and states that every invoice is charged in US dollars. Notix bills in US dollars by card too, and additionally lets teams in Nigeria and Kenya fund a prepaid wallet in naira or shillings, from which Pro is charged each month, so a card that clears international charges is not required. Plan prices are the same everywhere; only the currency and the payment method differ.

Support and SLA.

MailerSend states a 99.5 percent uptime SLA on Professional and above, not on Free, Hobby or Starter. Notix states a 99.9 percent uptime commitment on Pro, with the credit schedule written on the pricing page; the free plan is best effort. At the $15 line, then, Notix states one and MailerSend does not.

Verdict

Choose by volume and by what you need beside the send.

Choose MailerSend if

You send under 5,000 emails a month and want the cheapest paid plan there is.
You clean large lists and want bulk address verification.
You need SMS or WhatsApp to North American numbers, or an official Ruby or Java SDK.

Choose Notix if

You send tens of thousands a month and want 50,000 included at $15.
You want OTP codes, a pre-send deliverability check and marketing mail in one account.

The compare hub puts every vendor on this site in one table, and Notix vs Resend covers the vendor MailerSend is most often weighed against.

FAQ

Questions this comparison gets asked.

Is Notix cheaper than MailerSend?

It depends on volume. MailerSend's Hobby plan is $5.60 a month billed yearly ($7 month to month) for 5,000 emails, which is the cheapest paid plan of any vendor on this site. At 50,000 emails MailerSend's Starter is $35 a month and Notix Pro is $15 for 50,000, so the order flips. On the free side MailerSend allows 500 emails a month on one domain with 100 API requests a day; Notix allows 5,000 a month at 200 a day, with no card and no end date.

Does MailerSend have an OTP or verification code API?

No. MailerSend's verification product checks whether an address is valid, risky or should not be sent to; it does not generate, deliver or check one-time codes. Notix has a verification API that does all of that in two calls, by email or SMS, with risk scoring on the request, and a separate pre-send deliverability check for the message itself.

Which one verifies email addresses in bulk?

MailerSend. Address verification is an add-on at $0.01 per address for the first 5,000 credits, falling with volume, and the free plan includes 10 credits. Notix does not sell list validation; its deliverability check scores a message before it goes out, and its suppression list stops hard-bounced and complained addresses automatically. If you clean lists, MailerSend has the product for it.

Do both sign their webhooks?

Yes. MailerSend sends a Signature header computed with HMAC-SHA256 over the payload and a per-webhook signing secret. Notix signs every event the same way over the timestamp and the raw body and rejects replays older than five minutes. MailerSend limits the free and Hobby plans to one webhook endpoint and Starter to fifty; Notix does not cap endpoints by plan.

Which one publishes an SLA on its entry plan?

Notix states a 99.9% monthly uptime commitment on Pro, its first paid plan, with service credits set out on the pricing page. MailerSend publishes a 99.5% SLA on Professional and above; Hobby and Starter carry none.

Can I send SMS with either?

Both, in different places. MailerSend sells transactional SMS and WhatsApp with phone numbers for the United States and Canada at $2 a month per number. Notix sends SMS and SMS verification codes in Nigeria and Kenya, prepaid from a wallet in naira or shillings, with your own sender ID once approved. If your users are in North America, MailerSend covers it; if they are in West or East Africa, Notix does.

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