tinysend vs Mailgun
Mailgun is an established email API for high-volume transactional and bulk sending, with inbound routing and mature infrastructure. After its December 2025 price increase — Flex doubled to $2 per 1,000 with a roughly $35/month floor — smaller senders started looking elsewhere. tinysend speaks the Mailgun HTTP API, so you can switch by changing one base URL with no code rewrite, and your replies land in a real inbox instead of only a webhook.
At very high volume Mailgun has the scale. For small-to-mid senders who want a lower floor and their replies back, here is the difference.
| capability | mailgun | tinysend |
|---|---|---|
| send email via API | yes | yes |
| Mailgun-API compatible (switch without a rewrite) | it is Mailgun | yes |
| inbound email | routing to webhook | hosted inbox + webhook |
| newsletters + subscribers | no | yes |
| public archive + RSS | no | yes |
| open/click tracking | yes | yes |
| custom domains | yes | yes |
| low-volume price floor | ~$35/mo | free to 100, then $6/mo |
| agent self-signup (auth.md) | no | yes |
Pick Mailgun if you send at high volume and want Mailgun’s scale, dedicated IPs, and mature routing, and the per-message price at your volume works for you.
Pick tinysend if you are a small-to-mid sender who wants a lower floor, replies in a real inbox, and newsletters — or you want to leave Mailgun without rewriting code, since tinysend speaks the Mailgun API.
tinysend is Mailgun-API-compatible: point your app’s Mailgun base URL at mailgun.tinysend.com/v3 and keep your code. Works with Ghost, Laravel, Django, Node, and Rails. Full guide at tinysend.com/mailgun. See managing subscribers and custom domains.