ImprovMX doesn't host your inbox. We offer advanced[1] email forwarding to your existing inbox (Gmail, Outlook, etc.), with the option to send via SMTP.
Migadu is a paid hosted mailbox service: they provide the inbox, so you receive, read, and send mail in Migadu.
Your choice largely depends on if you need a hosted inbox or prefer to use your existing inbox.
ImprovMX
Migadu
Free plan
Free forwarding for one domain. Paid plans for scale.
Paid service only
Hosted Mailbox
No mailbox, keeps your existing inbox
Full mailboxes (IMAP, POP, webmail)
Email Sending
Transactional Email
Allowed
Receive/Send Limit
High daily limits, talk to us to scale
Low daily limits
Domain Limit
Plan dependent
Unlimited on every plan
Webhooks
Has webhook support
No webhook support
Setup
Manual setup only
Logging
Basic activity logs
API
API to manage domains & aliases
API in early beta
CLI/MCP
No official CLI or MCP
Customer Support
Live Human & AI Chatbot Support
Email support only
1. We offer rules routing, wildcard addresses, multiple recipient destinations, regex aliases and webhooks.
2. ImprovMX's CLI is built for terminal workflows, automation, and ai coding tools like Claude Code and OpenAI Codex.
Questions? Reach out to us, we love chatting about email service providers.
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