IceWarp Alternatives (January 2026)

IceWarp® - Business Email Server & Collaboration Hub

https://www.icewar.com/

Secure hosted email with custom domain. Shared calendars, chat, storage, documents & apps. The only solution integrated and working together in one screen.

4.2/5

80+ reviews

Reviewed on:

SmarterMail Business Email and Collaboration Server

https://www.smartertool

.com/smartermail/business-email-server/

Secure Windows or Linux mail server that includes chat, calendaring and contacts and offers a cost-effective alternative to Microsoft Exchange.

Secure Private Business Email & Collaboration | Open Source | Zimbra

https://www.zimbr

.com/

Zimbra: A Cloud-Hosted Collaboration Software and Email Platform That Integrates With Proprietary Business Solutions

Windows Mail Server, Email Server Software, Mail Servers | MailEnable

https://www.mailenabl

.com/

Windows mail server software with webmail, caldav, carddav, antivirus, spam filtering - Fast, secure email server software for windows. Download free mail server trial.

GFI KerioConnect

https://www.gf

.com/products-and-solutions/email-and-messaging-solutions/kerioconnect/

Emails, calendars, contacts, tasks, chat and more

OX Cloud - Premium email suite

https://www.oxclou

.email/

OX Cloud Email - Easy, Fast, Secure - Powerful email built for business

Secure Business Email Hosting for your Organization | Zoho Mail

https://www.zoh

.com/mail/

Ad-free Business Email Hosting with a clean, easy-to-use interface. Integrated Business Calendar, Contacts, Notes, Tasks. Free for up to 5 users.

Hosted Exchange | Sherweb

https://www.sherwe

.com/hosted-exchange/

Email hosting and collaboration tools for business with free migration and 24/7 support

Mail Server Software | Axigen

https://www.axige

.com/

Reliable, secure, extensible, and customizable mail server software platform made for on-prem and cloud-native deployment; easily scalable, smart licensing.

Enterprise Email Service for Business - MS Exchange Email

https://www.microsof

.com/en-us/microsoft-365/exchange/email/

Exchange business-class email helps increase user productivity while protecting your data. Get it as a hosted service or run it on your servers.