IceWarp alternatives · Email
IceWarp alternatives with a Linux app
The IceWarp listing does not include a Linux app. 23 of the 125 other email apps in this directory list a Linux app.
IceWarp is a paid product with a free trial, starting at $1.50 per user / month, billed monthly ($1.35 billed annually). 19 of them are free or have a free plan.
23 tools · Listings checked up to Nov 13, 2026 · Where the facts come from
The 12 closest to IceWarp
- Free plan
Axigen
Mail server with calendars and webmail for Windows and Linux
- Axigen has a free plan. IceWarp does not, though it has a free trial.
- Only Axigen lists a Linux app.
- Only IceWarp lists macOS, iOS and Android apps.
- Axigen is self-hostable, according to its own site.
- Free plan · from $550
SmarterMail
Business mail server for Windows and Linux with webmail
- SmarterMail starts at $550 for Professional with 50 mailboxes; license term not stated. IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- SmarterMail has a free plan. IceWarp does not, though it has a free trial.
- Only SmarterMail lists a Linux app.
- Only IceWarp lists macOS, iOS and Android apps.
- Paid
Zimbra
Self-hosted email, calendar and file sharing for organizations
- Only Zimbra lists a Linux app.
- Zimbra is open source and self-hostable, according to its own site.
- Zimbra also covers tasks.
- IceWarp also covers team chat, video calls and file sharing.
- Free trial
GFI KerioConnect
Self-hosted business mail server with calendar, chat and local AI
- Only GFI KerioConnect lists a Linux app.
- Only IceWarp lists a web app.
- Only IceWarp lists iOS and Android apps.
- GFI KerioConnect is self-hostable, according to its own site.
- Free trial · from $99/yr
HEY
Email service and calendar with sender screening, from 37signals
- HEY starts at $99 per year (HEY for You, annual billing only). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Only HEY lists a Linux app.
- HEY also covers templates.
- IceWarp also covers team chat, video calls and file sharing.
- Free plan · from $3.99/mo
Proton Mail
End-to-end encrypted email service based in Switzerland
- Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly. IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Proton Mail has a free plan. IceWarp does not, though it has a free trial.
- Only Proton Mail lists a Linux app.
- Proton Mail is open source and end-to-end encrypted, according to its own site.
- Free
Thunderbird
Free, open-source email app for Windows, macOS, Linux and Android
- Thunderbird is free. IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Thunderbird has a free plan. IceWarp does not, though it has a free trial.
- Only Thunderbird lists a Linux app.
- Only IceWarp lists a web app.
- Free trial · from $3/mo
Fastmail
Paid, ad-free email with calendar, contacts and custom domains
- Fastmail starts at $3 per user / month, billed yearly (Basic); Individual is $5, billed yearly. IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Only Fastmail lists a Linux app.
- IceWarp also covers team chat, video calls and file sharing.
- Free plan · from $1/mo
Zoho Mail
Ad-free business email hosting with calendar, tasks and notes
- Zoho Mail starts at $1 per user / month, billed annually (Mail Lite, 5 GB). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Zoho Mail has a free plan. IceWarp does not, though it has a free trial.
- Only Zoho Mail lists a Linux app.
- Zoho Mail also covers tasks.
- Free plan · from €3/mo
Tuta Mail
End-to-end encrypted email and calendar from Germany
- Tuta Mail starts at €3 per month, paid yearly (lowest paid personal plan). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Tuta Mail has a free plan. IceWarp does not, though it has a free trial.
- Only Tuta Mail lists a Linux app.
- Tuta Mail is open source and end-to-end encrypted, according to its own site.
- Free plan · from $35.99/yr
BlueMail
Cross-platform email client with a unified inbox and built-in AI
- BlueMail starts at $35.99 per year (Plus, shown as $3 per month billed annually). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- BlueMail has a free plan. IceWarp does not, though it has a free trial.
- Only BlueMail lists a Linux app.
- Only IceWarp lists a web app.
- Free plan · from $5/mo
Newton Mail
Cross-platform email app with read receipts, snooze and send later
- Newton Mail starts at $5 per month, billed annually ($6.99 billed monthly). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Newton Mail has a free plan. IceWarp does not, though it has a free trial.
- Only Newton Mail lists a Linux app.
- Only IceWarp lists a web app.
11 more that list a Linux app
All 23 in one tableCommon questions
Which IceWarp alternatives have a Linux app?
Axigen, SmarterMail, Zimbra, GFI KerioConnect, HEY, Proton Mail, Thunderbird, Fastmail and 15 more list a Linux app.
Does IceWarp have a Linux app?
The IceWarp listing does not include a Linux app. It lists Web, macOS, Windows, iOS and Android.
Which of these email apps are free?
Axigen, SmarterMail, Proton Mail, Thunderbird, Zoho Mail, Tuta Mail, BlueMail, Newton Mail 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 4, 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 IceWarp: the alternatives its listing names first, then the tools that share the most features with it.