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Documented scope and limits; unverified dimensions remain unknown.
Requirement	MailerSend	Mailgun
Pricing	From $7/mo Compare all 4 plans	From $15/mo Compare all 5 plans
Who it is for	Email API and SMTP relay for sending email, from a free 500-email plan upward. Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table	Sends application email through an HTTP API or an SMTP endpoint. Verified Oct 11, 2026 · Mailgun: official product and plan documentation
Coverage limits	Daily API requests are capped by plan: 100 on Free, 1,000 on Hobby, 100,000 on Starter and 500,000 on Professional. Table columns run Professional, Starter, Hobby, Free. Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table	Free and Basic allow 1 custom sending domain and 1 day of logs; Foundation raises this to 1,000 domains and 5 days, and Scale keeps 30 days. Verified Oct 11, 2026 · Mailgun: official product and plan documentation
Sending volume	Free 500 emails per month Hobby 5,000 emails per month Starter 50,000 emails per month Professional 50,000 emails per month	Free 100 emails per day Basic 10,000 emails per month Foundation 50,000 emails per month Scale 100,000 emails per month
Sender domains	An extra domain space costs USD 4.00; the billing period is not stated. Available on Starter, Professional and Enterprise. Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table Free 1 sending domain Hobby 1 sending domain Starter 10 sending domains Professional Unlimited, subject to the plan-limits policy	Free 1 custom sending domain Basic 1 custom sending domain Foundation 1,000 custom sending domains Scale 1,000 custom sending domains
Log retention	Searchable activity data can be extended up to 365 days, from USD 5.00. Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table Free 1 day of activity data Hobby 1 day of activity data Starter 7 days of activity data Professional 30 days of activity data	Free 1 day of logs Basic 1 day of logs Foundation 5 days of logs Scale 30 days of logs
Webhooks and events	Free 1 webhook Hobby 1 webhook Starter 50 webhooks Professional Unlimited, subject to the plan-limits policy	Tracking, analytics and webhooks are listed from the Free plan up. Basic, Foundation and Scale cards list them too. Verified Oct 11, 2026 · Mailgun: official product and plan documentation
Dedicated IP	Dedicated IPs are only for Enterprise accounts sending more than 100,000 emails a week. Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table	Extra dedicated IPs cost USD 59 per IP a month. Verified Oct 11, 2026 · Mailgun: official product and plan documentation Foundation Available from the 50,000-email tier; one IP included from 100,000 emails a month Scale One dedicated IP included, plus dedicated IP pools
Support	Free Limited Hobby Email support Starter Email and live chat support Professional Priority email support, live chat and onboarding assistance	Ticket, chat and phone support depend on the plan. Verified Oct 11, 2026 · Mailgun: official product and plan documentation Free Ticket support Scale Live phone and chat support
Overage charges	Sending continues past the monthly quota and extra emails are billed per 1,000; the email count resets every 30 days. Verified Oct 11, 2026 · MailerSend: official product and plan documentation	Extra emails are billed at the start of each month for the previous month, together with the plan fee. The first month is prorated. Verified Oct 11, 2026 · Mailgun: official product and plan documentation
Coverage note	At the volume shown on the plan card.	Starting allowance.