ImprovMX forwards email for custom domains with catch-all aliases and API access. Free plan for 25 aliases; Premium starts at $9/month.
ImprovMX is an email forwarding service that lets anyone route email sent to a custom domain address to an existing inbox, such as Gmail or Outlook, without setting up and maintaining a dedicated mail server. It's commonly used to give a personal or business domain professional-looking email addresses while keeping day-to-day email management in an existing provider.
The service is used by over 200,000 people and handles millions of forwarded emails daily, with a public status page and 24/7 support for paid customers.
ImprovMX supports catch-all aliases, regex-based routing patterns, and multi-destination forwarding, so a single alias can fan out to multiple inboxes or trigger a webhook. Paid plans add custom SMTP sending, so outgoing email appears to come from the user's own domain rather than a third-party address.
The platform also provides delivery logs for troubleshooting forwarding issues and an API for programmatically managing domains and aliases, which is useful for SaaS products that need to provision email addresses for customers automatically.
ImprovMx's Free plan covers one domain with up to 25 aliases, 500 forwarded emails per day, and 7-day log retention, with no time limit on the free tier.
Premium costs $9/month for up to 30 domains, 100 aliases per domain, custom SMTP sending, and up to 180-day log retention. Pro costs $24/month with higher domain, alias, and volume limits, and Enterprise offers custom, unlimited plans with a dedicated account manager. Annual billing gives a 15% discount on paid plans.
ImprovMX is used to forward email sent to a custom domain to an existing inbox, giving domains professional email addresses without hosting a mail server.
Yes, the Free plan supports one domain, up to 25 aliases, and 500 forwarded emails per day, forever.
Yes, paid plans (Premium and above) include custom SMTP sending so outgoing mail appears to come from your own domain.
Premium costs $9/month, Pro costs $24/month, and Enterprise uses custom pricing; annual billing gets a 15% discount.
ImprovMX states it does not read forwarded emails and is GDPR compliant.