Amazon SES vs Mailgun

Two sides of the transactional email decision: raw infrastructure and transactional API. When each fits, what it costs, who moves from one to the other, and what makers who chose it say.

Ask your AI about this, with this page as the source:ChatGPT ↗Claude ↗Perplexity ↗

Which fits you

Choose Amazon SES if
  • You send at high volume and cost per email matters most

Use it whenYou already run on AWS, or your email volume makes per-message price the main cost.

Trade-offBare-bones; you build templates, bounce handling and tooling yourself.

Choose Mailgun if
  • Your app also needs to receive and parse email that users send to it

Use it whenUsers need to reply to or email into your app, and you need to route and parse those messages.

Trade-offIts dashboard and API are older and busier than newer services, and the free tier is small.

At a glance

Amazon SESMailgun
Used by4 makers' products · 32 open-source projects47 makers' products · 11 open-source projects
Cost at default usageemails 50k emails$5.00/mo À la carte$35/mo Foundation 50k
Downloads3.6M/wk−15% vs npm1.1M/wk−23% vs npm
PricingPay per message; the cheapest option at high volume. · paid from $0.10 per 1k emailsFree tier; paid plans by volume. · paid from $15/mo
Free tierNoYes
Open sourceNoNo
Incidents, 90 daysfrom its status pageno public status feed12 (5 major)

Cost as you grow

At 1k emails Mailgun costs less ($0 vs $0.10); from about 5k emails Amazon SES does ($0.50 vs $15). They're different kinds of tool — raw infrastructure and transactional API — so the prices don't buy the same thing.

$0$50$200$500$1,000$2,0001k5k10k25k50k100k250k500k1M5M
MailgunAmazon SESx: emails per month (email) · cheapest usable plan at each point, list prices · try your own numbers
The numbers, plan by plan
Emails per monthAmazon SESMailgun
1,000$0.10 À la carte$0 Free
5,000$0.50 À la carte$15 Basic
10,000$1.00 À la carte$15 Basic
25,000$2.50 À la carte$35 Foundation 50k
50,000$5.00 À la carte$35 Foundation 50k
100,000$10 À la carte$75 Foundation 100k
250,000$25 À la carte$215 Scale 250k
500,000$50 À la carte$400 Scale 500k
1,000,000$100 À la carte$700 Scale 750k
5,000,000$500 À la carte$2,250 Scale 2.5M

From each vendor's pricing page: Amazon SES, Mailgun.

What makers say

Makers on using it for transactional email, from Product Hunt and Starter Story interviews, each linked to the source. Products with a page of their own and fuller notes first.

On Amazon SES

No maker quote about Amazon SES for transactional email yet.

On Mailgun
Common integrations include: ● Payment: Stripe , Paypal ● Newsletter Sending: Mailgun ● CRM: Salesforce ● Analytics: Google Analytics and Tag Manager ● Videos: YouTube, Vimeo…
Tendenci, the makerApr 2022 ↗
I love using Plausible for analytics, LogSnag for event tracking, NewRelic for application monitoring, MailGun for emails, Render for hosting, Stripe for billing.
GummySearch, the makerAug 2022 ↗
MailGun is one of the best services I’ve ever used for Transactional email (like sending important emails related to a customer’s account).
Tech Lockdown, the makerMay 2024 ↗
11 more on the Mailgun page →

Loved and watch-outs

Themes that recur in makers' words and Hacker News comments, each linked to what it summarises.

Amazon SES
Most loved
  • Sending costs pennies per thousand emails, with a free monthly allowance through the API. HNHN 2HN 3HN 4
  • Relaying outgoing mail through it fixes deliverability for self-hosted mail servers. HNHN 2HN 3HN 4
  • It enforces anti-spam discipline, warning senders early when complaint rates spike. HNHN 2
Watch-outs
  • Getting out of the sandbox is hard, and requests can be rejected with no clear reason. HNHN 2
  • Shared IP reputation is outside your control, and a dedicated IP costs extra without guaranteeing delivery. HNHN 2HN 3HN 4
  • The console is clunky, and domain and DNS setup often needs hand-holding. HNHN 2
Mailgun
Most loved
  • Reliable transactional email that gets a SaaS sending within days or weeks of starting. PHStarter Story
  • The API is a cost-effective choice for transactional mail next to a separate marketing tool. Starter StoryPH
  • Works as an SMTP relay for self-hosted servers, with a free tier for low volumes. HNHN 2HN 3HN 4
Watch-outs
  • Shared sending IPs regularly land on Yahoo and Outlook blocklists, partly because spam also flows through its network. HNHN 2HN 3HN 4
On Product Hunt: 5.0★, 8 reviews

Who uses each

What makers pair each with

With Amazon SES
ResendTransactional APIA modern developer API with email templates written as React components.vs Amazon SES →vs Mailgun →
PostmarkTransactional APIDeliverability when the mail has to arrive within seconds.vs Amazon SES →vs Mailgun →