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Mailgun alternatives: 8 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rankAll transactional email services

Top picks

Common reasons people leave Mailgun: free plan's daily limit only suits testing and tiny apps, and validation and extra emails are billed on top of the plan. We ranked 8 alternatives by how directly each one replaces Mailgun, then by reviews, real visits and how recently each app's facts were checked against its own website. Twilio SendGrid currently ranks first.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1Twilio SendGrid logoTwilio SendGridPaid—NoWeb5 of 568.8
2Postmark logoPostmarkFree plan + paid$15 a month (Basic, 10,000 emails)NoWeb6 of 664.8
3Elastic Email logoElastic EmailFree plan + paid$29/month for 2,500 contactsNoWeb4 of 464.0
4Resend logoResendFree plan + paid$20 a month for 50,000 emails (Pro)NoWeb6 of 659.4
5Mailjet logoMailjetFree plan + paid$9 a month (Starter, 8,000 emails/month)NoWeb6 of 652.6
6Brevo logoBrevoFree plan + paid$9 a month for 5,000 emailsNoWeb, iOS, Android5 of 550.0
7SMTP2GO logoSMTP2GOFree plan + paid$10 a month billed annually ($100/year), 10,000 emailsNoWeb7 of 742.3
8MailerSend logoMailerSendFree plan + paid$68/month for 100,000 emailsNoWeb5 of 542.3
  1. Twilio SendGrid logo

    1. Twilio SendGridTop pick

    Best for: Companies sending high volumes of app email that also want basic marketing campaigns from the same vendor

    PaidWeb

    68.8

    score / 100

    Why switch from Mailgun

    Similar API at huge scale, with a marketing campaign editor from the same vendor.

    Pros

    • Handles very large sending volumes
    • REST API and SMTP relay with SDKs for most languages
    • Marketing Campaigns tool for newsletters alongside the API
    • Dedicated IPs available on higher tiers

    Cons

    • No permanent free plan; the free trial ends after 60 days
    • Marketing Campaigns is billed separately from the Email API
    • Moving the site into Twilio's has made docs and pricing harder to find
    Visit Twilio SendGrid Compare with MailgunDetails and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Twilio SendGrid a good Mailgun alternative?

    Verified facts

    5 of 5 verified
    Free trial
    100 emails/day for 60 days
    Checked Nov 8, 2026twilio.com(opens source in a new tab)
    Sending methods
    REST API or SMTP relay
    Checked Nov 8, 2026twilio.com(opens source in a new tab)
    Volume
    205+ billion emails a month
    Checked Nov 8, 2026twilio.com(opens source in a new tab)
    Uptime SLA
    99.99%
    Checked Nov 8, 2026twilio.com(opens source in a new tab)
    Marketing editor
    Drag-and-drop with templates
    Checked Nov 8, 2026twilio.com(opens source in a new tab)
  2. Postmark logo

    2. Postmark

    Best for: SaaS teams that care most about fast, reliable delivery of password resets and receipts

    Free plan + paidWeb

    64.8

    score / 100

    Why switch from Mailgun

    Narrower focus on transactional speed with clear per-email pricing.

    Pros

    • Transactional and bulk mail kept in separate streams
    • Clear published pricing with unlimited daily sending
    • Inbound email processing on the Pro tier and above
    • Searchable activity logs with adjustable retention

    Cons

    • Free plan allows only 100 emails a month
    • Less suited to large marketing newsletters
    • Fewer custom sending domains on the cheapest plan
    Visit Postmark Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Postmark a good Mailgun alternative?

    Verified facts

    6 of 6 verified
    Free plan
    Yes, 100 emails a month
    Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
    Starting price
    $15 a month (Basic, 10,000 emails)
    Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
    Data retention
    45 days default, up to 365
    Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
    Daily limit
    Unlimited emails/day on paid plans
    Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
    Pro plan
    $16.50 a month (10,000 emails)
    Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
    Platform plan
    $18 a month (10,000 emails)
    Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
  3. Elastic Email logo

    3. Elastic Email

    Best for: Cost-conscious senders and agencies who want marketing and API sending in one account

    Free plan + paidWeb

    64.0

    score / 100

    Why switch from Mailgun

    Lower-cost sending API with pay-as-you-go pricing for teams sending in bulk.

    Pros

    • Very low prices for marketing and API sending
    • Marketing platform and email API in one account
    • Email verification and sub-accounts included

    Cons

    • Interface less polished than leading tools
    • Automations only on higher plans
    • Mixed reviews of support
    Visit Elastic Email Details and reviews
    How this score is calculated
    Editorial fit ×0.334
    Reviews ×0.363
    Clicks (90 days) ×0.15100
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Elastic Email a good Mailgun alternative?

    Verified facts

    4 of 4 verified
    Free plan
    1,000 contacts, 3,000 emails/month
    Checked Nov 8, 2026elasticemail.com(opens source in a new tab)
    Starter price
    $29/month for 2,500 contacts
    Checked Nov 8, 2026elasticemail.com(opens source in a new tab)
    Pro price
    $49/month for 2,500 contacts
    Checked Nov 8, 2026elasticemail.com(opens source in a new tab)
    Pro features
    Automations, paid newsletters, checkouts
    Checked Nov 8, 2026elasticemail.com(opens source in a new tab)
  4. Resend logo

    4. Resend

    Best for: Developers and startups who want a modern email API with React-based templates

    Free plan + paidWeb

    59.4

    score / 100

    Why switch from Mailgun

    Developer-first email API with React Email templates and a simpler dashboard, plus a free tier.

    Pros

    • Simple REST API plus SMTP relay and official SDKs
    • React Email templates fit naturally into JavaScript codebases
    • Free plan is enough for side projects and testing
    • Transactional and broadcast email in one account

    Cons

    • Free plan is capped at 100 emails a day
    • Dedicated IPs and SSO cost extra add-ons
    • Younger service with fewer marketing features than full email marketing suites
    Visit Resend Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Resend a good Mailgun alternative?

    Verified facts

    6 of 6 verified
    Free plan
    Yes, 3,000 emails a month (100 a day)
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Starting price
    $20 a month for 50,000 emails (Pro)
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Sending methods
    REST API and SMTP relay
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Free trial
    No, free-forever plan instead
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Dedicated IP
    $30/month add-on
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Scale plan
    $90 a month for 100,000 emails
    Checked Nov 8, 2026resend.com(opens source in a new tab)
  5. Mailjet logo

    5. Mailjet

    Best for: Teams that need marketing and transactional email together, with collaborative editing

    Free plan + paidWeb

    52.6

    score / 100

    Why switch from Mailgun

    Sister product from Sinch with a visual editor for marketing email.

    Pros

    • Marketing and transactional email in one account
    • Real-time collaboration and approval workflows
    • Volume-based pricing with a free plan

    Cons

    • Free plan has a daily send cap
    • Basic automation
    • Limited support on lower tiers
    Visit Mailjet Details and reviews
    How this score is calculated
    Editorial fit ×0.346
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Mailjet a good Mailgun alternative?

    Verified facts

    6 of 6 verified
    Free plan
    Yes, 6,000 emails/month (200 per day)
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Free plan card
    No credit card required
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Starter plan
    8,000 emails/month, no daily limit
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Starting price
    $9 a month (Starter, 8,000 emails/month)
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Essential plan
    $19 a month, 15,000 emails/month
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Premium plan
    $29 a month, 15,000 emails/month
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
  6. Brevo logo

    6. Brevo

    Best for: Businesses with large contact lists that want email, SMS and a CRM in one place

    Free plan + paidWeb, iOS, Android

    50.0

    score / 100

    Why switch from Mailgun

    Transactional SMTP and API on the same account as your marketing email, priced by volume.

    Pros

    • Priced by emails sent, not contacts stored
    • Email, SMS, WhatsApp and transactional email together
    • Free plan with daily sending allowance

    Cons

    • Free plan has a daily send limit and branding
    • Editor and templates less polished than some rivals
    • SMS credits cost extra
    Visit Brevo Details and reviews
    How this score is calculated
    Editorial fit ×0.338
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Brevo a good Mailgun alternative?

    Verified facts

    5 of 5 verified
    Free plan
    Yes, up to 300 emails per day
    Checked Nov 8, 2026brevo.com(opens source in a new tab)
    Free plan terms
    Free forever, no card needed
    Checked Nov 8, 2026brevo.com(opens source in a new tab)
    Starter volume
    From 5,000 emails per month
    Checked Nov 8, 2026brevo.com(opens source in a new tab)
    Transactional messaging
    Email, SMS and WhatsApp via SMTP and API
    Checked Nov 8, 2026brevo.com(opens source in a new tab)
    Starting price
    $9 a month for 5,000 emails
    Checked Nov 8, 2026brevo.com(opens source in a new tab)
  7. SMTP2GO logo

    7. SMTP2GO

    Best for: Small businesses, MSPs and IT admins who need a reliable SMTP relay for apps, servers and devices

    Free plan + paidWeb

    42.3

    score / 100

    Why switch from Mailgun

    Straightforward SMTP relay with automatic SPF and DKIM and subaccounts for MSPs.

    Pros

    • Permanent free plan for low volumes
    • SPF and DKIM handled automatically
    • Subaccounts suited to managed service providers
    • Ticket, chat and phone support on paid plans

    Cons

    • Free plan caps at 1,000 emails a month
    • Phone and chat support are limited to 14 days on the free plan
    • Signup rejects addresses at public domains like Gmail
    Visit SMTP2GO Details and reviews
    How this score is calculated
    Editorial fit ×0.312
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is SMTP2GO a good Mailgun alternative?

    Verified facts

    7 of 7 verified
    Free plan
    Yes, up to 1,000 emails a month
    Checked Nov 8, 2026smtp2go.com(opens source in a new tab)
    Refund guarantee
    30 days
    Checked Nov 8, 2026smtp2go.com(opens source in a new tab)
    Customers
    40,000+ businesses
    Checked Nov 8, 2026smtp2go.com(opens source in a new tab)
    SPF/DKIM
    Automatic
    Checked Nov 8, 2026smtp2go.com(opens source in a new tab)
    Infrastructure
    Multi data center, redundant
    Checked Nov 8, 2026smtp2go.com(opens source in a new tab)
    Starting price
    $10 a month billed annually ($100/year), 10,000 emails
    Checked Nov 8, 2026smtp2go.com(opens source in a new tab)
    Professional plan
    $75 a month billed annually ($750/year), 100,000 emails
    Checked Nov 8, 2026smtp2go.com(opens source in a new tab)
  8. MailerSend logo

    8. MailerSend

    Best for: SaaS and ecommerce teams who want an email API plus templates non-developers can edit

    Free plan + paidWeb

    42.3

    score / 100

    Why switch from Mailgun

    Adds visual template editors and DMARC monitoring alongside the API.

    Pros

    • Free plan for testing and small senders
    • Visual template editors alongside the API and SMTP relay
    • Built-in inbound routing, email verification and DMARC monitoring
    • Unused trial ends on the free plan, with no automatic charge

    Cons

    • Free plan needs a credit card and has tight daily API limits
    • SMS sending only works in the US and Canada
    • Dedicated IPs are reserved for high-volume enterprise accounts
    Visit MailerSend Details and reviews
    How this score is calculated
    Editorial fit ×0.312
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is MailerSend a good Mailgun alternative?

    Verified facts

    5 of 5 verified
    Free plan
    500 emails/month
    Checked Nov 8, 2026mailersend.com(opens source in a new tab)
    Free trial
    14 days of Professional
    Checked Nov 8, 2026mailersend.com(opens source in a new tab)
    Starter plan
    $68/month for 100,000 emails
    Checked Nov 8, 2026mailersend.com(opens source in a new tab)
    Nonprofit discount
    30%
    Checked Nov 8, 2026mailersend.com(opens source in a new tab)
    SMS coverage
    USA and Canada only
    Checked Nov 8, 2026mailersend.com(opens source in a new tab)

The best Mailgun alternative for…

The highest-ranked app in this list for each need.

Twilio SendGrid logo

Best Mailgun alternative for most people

Twilio SendGrid

Similar API at huge scale, with a marketing campaign editor from the same vendor.

Postmark logo

Best Mailgun alternative for a free plan you can upgrade

Postmark

Narrower focus on transactional speed with clear per-email pricing.

Brevo logo

Best Mailgun alternative for iPhone and Android

Brevo

Transactional SMTP and API on the same account as your marketing email, priced by volume.

Elastic Email logo

Best Mailgun alternative for working in the browser

Elastic Email

Lower-cost sending API with pay-as-you-go pricing for teams sending in bulk.

Mailgun alternatives: common questions

What is the best alternative to Mailgun?

Twilio SendGrid ranks first right now. Similar API at huge scale, with a marketing campaign editor from the same vendor. Postmark and Elastic Email follow it in our ranking.

Mailgun vs Twilio SendGrid: what's the difference?

Mailgun is free with paid plans; Twilio SendGrid is a paid product. Both run on Web.

Is Mailgun free?

Mailgun is free with paid plans. Free plan: Yes, 100 emails/day; Starting paid plan: $35/month for 50,000 emails; Extra emails: From $1.80 per 1,000 (Basic); Starting price: $15/month for 10,000 emails (Basic). Checked on Mailgun's own site, November 2026.

How much do Mailgun alternatives cost?

Verified prices for the top-ranked Mailgun alternatives: Postmark, $15 a month (Basic, 10,000 emails); Elastic Email, $29/month for 2,500 contacts; Resend, $20 a month for 50,000 emails (Pro); Mailjet, $9 a month (Starter, 8,000 emails/month); Brevo, $9 a month for 5,000 emails. Each price was checked on the app's own site; see each card below for the date and source.

Is there a free alternative to Mailgun?

Yes. Postmark (free plan + paid), Elastic Email (free plan + paid), Resend (free plan + paid) and Mailjet (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Mailgun?

None of the 8 alternatives in this list is open source.

Why do people switch from Mailgun?

The complaints we hear most: free plan's daily limit only suits testing and tiny apps; validation and extra emails are billed on top of the plan; no drag-and-drop marketing editor.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Mailgun, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.