Founded in 2016, Forward Email is a fully open-source (MIT license) free email forwarding service with custom domain support. Zero ads, zero tracking, encrypted delivery, with API and SMTP relay — the go-to email forwarding solution for privacy-conscious developers.
Founded in 2014, MXroute is a US-based email hosting provider known for exceptional value—unlimited domains, generous storage, and SMTP relay starting at just $45/year.
Migadu is a fairly-priced email hosting service from Switzerland with an "Email Done Right" philosophy, supporting unlimited domains and unlimited aliases, billed by actual usage rather than per mailbox.
Founded in 2016 in the Netherlands, ImprovMX is a lightweight email forwarding service. Its free plan offers unlimited alias forwarding and Catch-All capture for one domain, with 5-minute DNS setup — ideal for indie developers and site owners.