Migadu

Migadu (Swiss, very flexible, wildcard-friendly)

• Small but respected Swiss-based provider focused on simplicity and flexibility.
• Very strong support for wildcard / catch-all and even “wildcard sending” (send from any address @yourdomain), configured per mailbox.

Pros:
- Extremely flexible for aliases and wildcards.
- Simple pricing by volume, not per address.

Cons:
- Smaller provider; fewer “enterprise” features.
- Admin UI is more minimalist.