ImprovMX alternatives · Email
Self-hosted alternatives to ImprovMX
The ImprovMX listing does not say it can be self-hosted. 25 of the 125 other email apps in this directory can be self-hosted, according to their own sites.
ImprovMX has a free plan. Paid plans start at $50 per year (Light, up to 5 domains). 19 of them are free or have a free plan.
25 tools · Listings checked up to Nov 13, 2026 · Where the facts come from
The 12 closest to ImprovMX
- Free plan · from $36/yr
SimpleLogin
Open-source email aliases that forward to your own inbox
- SimpleLogin starts at $36 per year ($4 billed monthly). ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only SimpleLogin lists iOS and Android apps.
- Only SimpleLogin lists a browser extension.
- SimpleLogin is open source and self-hostable, according to its own site.
- Free plan · from $1/mo
addy.io
Email alias forwarding that hides your real address from sites
- addy.io starts at $1 per month, billed yearly (Lite). ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only addy.io lists iOS and Android apps.
- Only addy.io lists a browser extension.
- addy.io is open source and self-hostable, according to its own site.
- Free trial · from $18/mo
Inbox Zero
Open source AI email assistant for Gmail and Outlook
- Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly). ImprovMX starts at $50 per year (Light, up to 5 domains).
- ImprovMX has a free plan. Inbox Zero does not, though it has a free trial.
- Only Inbox Zero lists macOS, Windows, iOS and Android apps.
- Only Inbox Zero lists a browser extension.
- Free plan · from $20/mo
Zero Mail
Open-source AI email client that connects your existing inboxes
- Zero Mail starts at $20 per month (billing basis not shown). ImprovMX starts at $50 per year (Light, up to 5 domains).
- Zero Mail is open source and self-hostable, according to its own site.
- Zero Mail also covers email client.
- ImprovMX also covers transactional email.
- Free
Cypht
Open-source webmail that combines many accounts in one inbox
- Cypht is free. ImprovMX starts at $50 per year (Light, up to 5 domains).
- Cypht is open source and self-hostable, according to its own site.
- Cypht also covers email client.
- ImprovMX also covers transactional email.
- Paid
Zimbra
Self-hosted email, calendar and file sharing for organizations
- ImprovMX has a free plan. Zimbra does not.
- Only Zimbra lists Windows, macOS, Linux, iOS and Android apps.
- Zimbra is open source and self-hostable, according to its own site.
- Zimbra also covers tasks, calendar and email client.
- Free
Roundcube
Free open-source webmail client you host yourself
- Roundcube is free. ImprovMX starts at $50 per year (Light, up to 5 domains).
- Roundcube is open source and self-hostable, according to its own site.
- Roundcube also covers email client.
- ImprovMX also covers inbox filtering and transactional email.
- Free
SOGo
Open-source groupware with webmail, calendars and contacts
- SOGo is free. ImprovMX starts at $50 per year (Light, up to 5 domains).
- SOGo is open source and self-hostable, according to its own site.
- SOGo also covers calendar and email client.
- ImprovMX also covers inbox filtering and transactional email.
- Paid
Open-Xchange
OX App Suite email platform sold to providers and governments
- ImprovMX has a free plan. Open-Xchange does not.
- Open-Xchange is open source and self-hostable, according to its own site.
- Open-Xchange also covers calendar and email client.
- ImprovMX also covers inbox filtering and transactional email.
- Free
Horde
Free open-source webmail, calendar, contacts and tasks suite
- Horde is free. ImprovMX starts at $50 per year (Light, up to 5 domains).
- Horde is open source and self-hostable, according to its own site.
- Horde also covers notes, tasks, calendar and email client.
- ImprovMX also covers inbox filtering and transactional email.
- Free
mailcow
Dockerized open-source mail server with a web admin UI
- mailcow is free. ImprovMX starts at $50 per year (Light, up to 5 domains).
- mailcow is open source and self-hostable, according to its own site.
- mailcow also covers calendar and email client.
- ImprovMX also covers inbox filtering and transactional email.
- Free
Mail-in-a-Box
Free script that turns a cloud server into your own mail server
- Mail-in-a-Box is free. ImprovMX starts at $50 per year (Light, up to 5 domains).
- Mail-in-a-Box is open source and self-hostable, according to its own site.
- Mail-in-a-Box also covers calendar and email client.
- ImprovMX also covers inbox filtering and transactional email.
Common questions
Is there a self-hosted alternative to ImprovMX?
Yes. SimpleLogin, addy.io, Inbox Zero, Zero Mail, Cypht, Zimbra, Roundcube, SOGo and 17 more can be self-hosted, according to their own sites.
Can ImprovMX be self-hosted?
The ImprovMX listing does not say it can be self-hosted. The listing was checked on Nov 12, 2026 against the pages it cites.
Which of these email apps are free?
SimpleLogin, addy.io, Zero Mail, Cypht, Roundcube, SOGo, Horde, mailcow and 11 more are free or have a free plan.
When was this checked?
Each listing shows its own date. On this page they run from Oct 9, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to ImprovMX: the alternatives its listing names first, then the tools that share the most features with it.