Mailroomly and Mailgun
Mailroomly and Mailgun both send app email through an API, and Mailroomly accepts Mailgun’s own requests. Mailgun stops at sending and routing: replies go to a server you build, and there is no team inbox or newsletter editor. Mailroomly adds team inboxes, campaigns and AI agents with approval, from €12 a month for 10,000 emails.
Last updated October 20, 2026
Mailroomly and Mailgun, side by side
| What you need | Mailroomly | Mailgun |
|---|---|---|
| Sending from your apps | Its own REST API, and the requests and webhooks of SendGrid, Mailgun and Postmark | Its sending API |
| Replies to what you sent | In the thread with what was sent, in a team inbox | Forwarded to your server by routes; you build the inbox |
| Team inboxes | support@, sales@ and billing@, shared | Not offered |
| Newsletters and automations | On the same plan, with double opt-in forms | Not offered: another tool |
| AI agents’ drafts held for approval | Yes, over MCP or the API | Not offered |
| Entry price | €12 a month: 10,000 emails and 1 user (Solo) | $15 a month: Basic, for 10,000 emails |
What it costs, with the users who answer email
Prices exclude VAT. Public list prices in US dollars, checked on October 19, 2026: SendGrid Essentials (its entry plan, up to 50,000 emails) and Marketing Campaigns; Mailgun Basic and Postmark Basic for 10,000 emails; Missive Starter for up to 5 users (Productive above that), billed yearly. Mailroomly’s 10,000 emails count received email too.
Separate tools
Mailgun Basic$15
A newsletter toolanother bill
Missive Starter, 2 users$28
Connecting AI agents, with approvalnot offered
From $43a month
Mailroomly Solo, 2 users
€18a month
About €19 less a month before a newsletter tool, and your AI agents connect at no extra cost.
Start for free nowGo to your MailroomConverted at 1 USD = 0.87 EUR. Sources: twilio.com · mailgun.com · postmarkapp.com · missiveapp.com · ecb.europa.eu
Moving takes an afternoon
Keep your SDK, your requests and your webhook handlers. Change the host and the key.
Moving from SendGrid, Mailgun or Postmark? Ask us for a switcher code.
Mailgunapi.mailgun.netapp.mailroomly.com
…and the key: a Mailroomly key in place of the old one.
When Mailgun fits better
- You send at a volume where sending is all you need, and you route replies to your own systems.
- You need what we don’t offer yet, such as dedicated IP addresses or address validation.
- You need your data stored in the United States.
Questions about moving from Mailgun
Can I keep my Mailgun code?
Yes. Point your Mailgun SDK at app.mailroomly.com and use a Mailroomly key. Your requests and webhook handlers keep working.
What happens to my routes?
Replies land in the team inbox of the address they answer, in the thread with what was sent. Webhooks tell your app about each one.
How long does the move take?
An afternoon for most apps: change the host and the key, then verify your domain’s DNS records in Mailroomly.
Bring all your email into one place.
Start free with a free address today. Move your apps, your team and your agents when you’re ready.