MailerSend vs Postmark
We give MailerSend a 2.4 GPA and Postmark a 2.2, out of 4.0. MailerSend grades higher on value for money. They get the same grade on the free plan, features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
MailerSend
Transactional email and SMS API from the team behind MailerLite
Postmark
Transactional email API and SMTP, with broadcasts on a separate stream
How we grade them
| 2.4GPAMailerSendFair | 2.2GPAPostmarkFair | |
|---|---|---|
| Value for money | CGraded on 50,000 emails a month: Starter is $31.50 at that volume paid yearly, or $35 monthly, a bit above this category's middle. It includes 10 domains and 100 SMS. Dedicated IPs are for Enterprise only. | DGraded on 50,000 emails a month: $55 on Basic or $60.50 on Pro, billed monthly only. That's the dearest in this category at that volume, roughly twice the middle. Bootstrapped companies can ask for $75 of credit, which helps a bit. |
| Free plan and trial | CA free plan for good: 500 emails a month, 1 domain, 1 template and 1 day of activity data. It asks for a card even though nothing is charged. There's also a 14-day trial of Professional. | CA free developer plan that never expires and needs no card, but it's 100 emails a month with no way to buy more. That's for testing an integration, not running an app. |
| Features | BAPI and SMTP with SDKs and an MCP server, drag-and-drop and HTML templates, inbound routing, webhooks, email verification, DMARC and blocklist monitoring, plus SMS and WhatsApp. It covers the whole job; dedicated IPs are Enterprise only. | BAPI and SMTP with SDKs, separate streams for app and bulk email, inbound email turned into JSON, templates, 45 days of message history and DMARC reports as an add-on. It covers the whole job; inbound needs Pro. |
| Ease of use | CJudged on how fast a developer sends a first email: SDKs from Node.js to Laravel and an SMTP relay, once a domain is verified. No rating on record. The card asked for at sign-up slows down a quick test. | CJudged on how fast a developer sends a first email: official SDKs, a sandbox mode, ready-made templates for resets and receipts, and migration guides. You'll still verify a domain first. No rating on record. |
| Platforms and integrations | BWeb, with an API, SMTP and an MCP server, plus Zapier, Make, WordPress, WooCommerce, Supabase, Firebase, Laravel and Slack. No desktop or phone app, so B is the top. | BWeb, with an API and SMTP, plus Zapier, WordPress, Stripe, Slack, Supabase, Bubble, Netlify and Datadog. No desktop or phone app, so B is the top. |
| Best for | app email plus texts, from the MailerLite team | app email kept apart from marketing sends |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: MailerSend and Postmark. How we grade
Price against what you get
MailerSend starts at $6.30 a month and scores 2.7 out of 4 on features, ease of use and platforms. Postmark starts at $15 a month and scores 2.7.
They score the same, and MailerSend starts $8.70 a month lower. Of the other email sending services on the chart, none scores higher than MailerSend for less, and none scores higher than Postmark for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- MailerSend starts at $6.30 per month for 5,000 emails, billed annually ($7 billed monthly). Postmark starts at $15 per month for 10,000 emails.
- MailerSend also covers business texting, whatsApp messaging and email verification.
At a glance
| MailerSend | Postmark | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | $6.30 per month for 5,000 emails, billed annually ($7 billed monthly) | $15 per month for 10,000 emails |
| Free plan | 500 emails a month, 1 domain, 1 template, 1 user, 1 webhook and 100 API requests a day. A credit card is needed to subscribe, though nothing is charged. | Free developer plan: 100 emails a month with no expiry and no overages, for testing an integration or a small side project. No credit card needed. |
| Free trial | 14-day free trial of the Professional plan, with no automatic subscription after | None listed |
| Web | ||
| Made by | MailerSend | ActiveCampaign, LLC |
| Price read from | mailersend.com | postmarkapp.com |
| Checked | Oct 18, 2026 | Oct 18, 2026 |
Who each one suits
MailerSend
- Software and online stores sending receipts and notifications
- Teams that want transactional email and text messages in one tool
- Existing MailerLite customers adding app email
Postmark
- Software teams whose password resets and receipts must arrive fast
- Apps that need to receive and parse incoming email
- Bootstrapped founders, who can ask for $75 of credit
Worth knowing
MailerSend
- The free plan sends only 500 emails a month and asks for a credit card to subscribe.
- SMS sending and phone numbers are available in the US and Canada only.
- Dedicated IPs are only for Enterprise accounts sending more than 100,000 emails a week.
- The yearly discount cannot be combined with the 30% nonprofit discount.
Postmark
- There is no tier between the free 100 emails a month and the 10,000-email paid plans.
- Billing is monthly only; the FAQ says annual plans are not offered yet.
- Basic has no inbound email processing and caps users at 4 and sending domains at 5.
- Dedicated IPs start at $50 a month per IP, need Pro or higher and 300,000 emails a month or more.
Key features
MailerSend
- Email API and SMTP relay
- Send through a REST API with SDKs for Node.js, Python, Java, PHP, Go, Ruby and Laravel, or through SMTP, plus an MCP server for AI tools.
- Template builders
- Drag-and-drop, HTML and rich-text editors with dynamic templates, translations and split testing.
- Inbound email routing
- Receive emails and route their content to your app or a webhook, so replies and incoming messages can trigger actions.
- SMS and WhatsApp
- Starter and Professional include an SMS allowance for the US and Canada, with phone numbers at $2 each a month; WhatsApp is an add-on on paid plans.
- Deliverability monitoring
- DMARC monitoring for 10 domains on Professional (a 30-day trial on 1 domain for Starter), blocklist monitors, suppression lists and activity logs.
- Email verification
- Check addresses in bulk or in real time through the validation API, bought as credits on any plan.
Postmark
- Email API and SMTP
- Send through a REST API with official SDKs or through SMTP, with batch sending, a sandbox mode and migration guides from other providers.
- Message streams
- Transactional and bulk or broadcast email run on separate sending infrastructure, so marketing sends do not affect password resets and receipts.
- Inbound email processing
- Pro and Platform turn incoming email into a JSON object and post it to a webhook URL your app handles.
- Templates
- Responsive templates for welcome emails, password resets and receipts, with a template editor and import tool.
- Message history and analytics
- 45 days of full message content by default, adjustable from 7 to 365 days, with bounce details, open and link tracking and a stats API.
- DMARC monitoring
- DMARC Digests reports show authentication problems and who is sending with your domain, sold as an add-on from $14 a month per domain.
Plans
MailerSend
Free$0
500 emails a month, email API and SMTP relay, drag-and-drop builder, 1 domain, 1 day of activity data.
Hobby$6.30
per month for 5,000 emails, billed annually ($7 billed monthly)
5 seats, 1 domain, 10 templates, bulk emailing and user roles. Extra emails $1.50 per 1,000.
Starter$31.50
per month for 50,000 emails, billed annually ($35 billed monthly)
10 domains, 250 templates, 100 SMS, no MailerSend logo, 7 days of activity data. Extra emails $1.30 per 1,000; $68 a month at 100,000 emails.
Professional$99
per month for 50,000 emails, billed annually ($110 billed monthly)
Unlimited users, domains and templates, 150 SMS, 30 days of activity data, an account manager and deliverability advice. Extra emails $1.30 per 1,000.
EnterpriseCustom
For special requirements, including dedicated IPs for senders of more than 100,000 emails a week.
Postmark
Free$0
100 emails a month, never expires; extra emails cannot be bought on this plan.
Basic$15
per month for 10,000 emails
5 sending domains, 4 users, 45 days of history, no inbound email. Extra emails $1.80 per 1,000; $55 a month at 50,000 emails.
Pro$16.50
per month for 10,000 emails
10 domains, 6 users, inbound email, retention up to 365 days. Extra emails $1.30 per 1,000; $60.50 a month at 50,000 emails.
Platform$18
per month for 10,000 emails
Unlimited domains, servers, streams and users, with inbound email. Extra emails $1.20 per 1,000; $66 a month at 50,000 emails.
High volumeCustom
Custom pricing for large senders, arranged through sales.
Ways to pay less
MailerSend
- Annual discount
Save 10% by paying yearly
Yearly billing takes 10% off: Starter at 50,000 emails is $31.50 a month ($378 a year) instead of $35, and Professional $99 instead of $110.
- Nonprofit
30% off for nonprofits
Nonprofits get 30% off paid plans after starting a free trial and sending proof of status to support; it does not stack with yearly pricing.
Postmark
- Startups
$75 credit for bootstrapped companies
Companies that have launched, are charging for their product and have taken no outside investment can ask support for $75 of account credit.
