Conversion GemsConversion Gems
SmarterMail logo
Reviewed · Updated 2026-10-04

SmarterMail

Self-hosted email and collaboration server for Windows and Linux, sold as a perpetual license with a free 10-mailbox edition.

Reviewed by the Conversion Gems editorial team ·
Try SmarterMail
Pricing
Freemium
Best for
Self-hosted business email
Category
Hosting Providers

SmarterMail is self-hosted email and collaboration server software from SmarterTools for Windows, Linux and Docker. It suits IT admins, small businesses and web hosts that want to run their own mail. The Free Edition covers one domain with up to 10 mailboxes; paid licenses start at $550 one-time for 50 mailboxes, and yearly support renewal costs 50% of the license price.

The bottom line

A capable self-hosted mail server with a real free tier; budget for yearly support and sync add-ons.

6.7
Our score
6.7 / 10
Conversion Gems editorial verdict
Free (10 mailboxes); $550 one-time for 50
Features8/10
8 - webmail, shared calendars, chat and meetings, archiving, MAPI/EWS/EAS options and a clustered HA edition.
Value7/10
7 - free 10-mailbox edition and one-time licenses from $550, offset by 50% yearly support renewal and annual add-ons.
Ease of use5/10
5 - self-hosted: you install it on Windows, Linux or Docker and manage DNS, updates and spam yourself.
Ecosystem6/10
6 - works with standard mail clients over IMAP, POP, CalDAV and CardDAV; Outlook and ActiveSync need paid add-ons.
Support6/10
6 - online help, a knowledge base and a community portal; technical support only while Maintenance and Support is active.
What it really is

Windows and Linux mail server software you host yourself, licensed once per mailbox tier.

Our take

SmarterMail gives small IT teams and hosts a self-run alternative to rented mailboxes, with webmail and groupware that cover the daily basics and a free edition for tiny offices. Read the price list carefully: support renewal is 50% of the license each year, and Outlook and phone sync are separate annual add-ons. It makes sense when you already run servers and want control over your mail.

Why we rate it

Broad mail and groupware features with published prices and a usable free edition.

The catch

Yearly Maintenance and Support at 50% of the license, and paid MAPI/EWS and ActiveSync add-ons for Outlook and phones.

Best for
Small offices with 10 or fewer mailboxes
Web hosts and ISPs
Teams that want to keep mail on their own servers
Not good for
Teams without anyone to run a server
Buyers who want no recurring costs for Outlook sync
Friction report
Time to value
Hours to days: install, DNS records, certificates and spam settings come before the first mailbox works.
Scale breakpoint
An 11th mailbox or a second domain ends the free edition; Outlook or phone sync adds annual add-on fees.
Walled garden
Low: standard protocols (IMAP, POP, CalDAV, CardDAV) work with most mail clients.

SmarterMail license prices (one-time, per mailbox tier)

MailboxesProfessionalEnterpriseEnterprise MAPI/EWS add-on
50$550$700$325
250$950$1,200$450
500$1,200$1,500$650
1,000$1,500$1,800$775
2,000$1,800$2,200$900
Unlimited$2,500$3,200$1,200

From SmarterTools' pricing page, checked 4 October 2026. Licenses include 12 months of Maintenance and Support; renewal is 50% of the new product price per year. Add-ons and Exchange ActiveSync ($325 for 25 mailboxes up to $1,675 for 300) are licensed annually. High Availability costs $250/month per hub and $300/month per node.

Which edition fits

EditionLimitsNotable inclusions
Free1 domain, up to 10 mailboxes, standaloneMost Enterprise features; no MAPI/EWS, EAS or premium add-ons
ProfessionalMailbox tier you buyWebmail-focused; POP, IMAP, DAV, CalDAV, CardDAV; file storage
EnterpriseMailbox tier you buyVoice and video chat, online meetings, built-in archiving; MAPI/EWS and EAS as add-ons
High AvailabilityUnlimited users and domainsClustered hubs and nodes; MAPI and EWS included

From SmarterTools' edition comparison, downloads and pricing pages, checked 4 October 2026.

Frequently Asked Questions

SmarterMail alternatives

Other email options to compare:

Migadu: Hosted email priced per account rather than per mailbox, so there is no server to run.
Piler: Open-source email archiving that runs alongside an existing mail server.
Neo Mail: Hosted email service focused on encryption and privacy, with no server to run.
Amazon SES: AWS email sending and receiving service for apps and bulk mail, not a mailbox server.
Ready to try SmarterMail?
Opens the official site — we may earn a commission if you sign up.
Try SmarterMail

Tags

#SmarterMail#EmailServer#SelfHosted#ExchangeAlternative

Conversion Gems independently reviews every tool. We may earn a commission if you sign up through our links — it never affects our verdict or ranking.