Communication
Best Email Server Software in 2026
Email server software helps you compare tools for running email services by maker-stated pricing and platform support. This list is for people choosing software for a server or hosted environment.
- 01
Axigen Free plan Web · Windows · macOS · Linux8.4 Visit Specs - 02 iRedMail From $0.83/mo Free trial Web · Linux · API · Self-hosted8.4 Visit Specs
- 03
mailcow From €8.90/mo Free plan Web · Linux · iOS · Android8.4 Visit Specs - 04 MailEnable Free plan Web · Windows · iOS · Android8.3 Visit Specs
- 05
Apache James Free plan Windows · Linux · API · Self-hosted8.1 Visit Specs - 06 Exim Free plan Windows · macOS · Linux · Self-hosted8.1 Visit Specs
- 07 Modoboa From €11.61/mo Free plan Web · Linux · Self-hosted8.1 Visit Specs
- 08 Cyrus IMAP Free plan Linux · Self-hosted8.0 Visit Specs
- 09 hMailServer Free plan Windows · Linux · API · Self-hosted8.0 Visit Specs
- 10 poste.io From $29.08/mo Free plan Web · Linux · API · Self-hosted8.0 Visit Specs
- 11
SmarterMail From $41.67/mo Free plan Web · Windows · Linux · iOS8.0 Visit Specs - 12
Stalwart Mail Server From $0.09/mo Free plan Web · Windows · macOS · Linux8.0 Visit Specs - 13 Mailu Free plan Web · Linux · API · Self-hosted7.9 Visit Specs
- 14 Dovecot Free plan Linux · Self-hosted7.8 Visit Specs
- 15 Microsoft Exchange Online From $0.33/mo Web · Windows · macOS · iOS7.8 Visit Specs
- 16 Docker Mailserver Linux · Self-hosted7.7 Visit Specs
- 17 Maddy Mail Server Free plan Linux · Self-hosted7.7 Visit Specs
- 18
Mail-in-a-Box Web · Linux · API · Self-hosted7.5 Visit Specs - 19 Pegasus Mail Free plan Windows7.4 Visit Specs
- 20
Zimbra Collaboration Free trial Web · Windows · macOS · Linux7.3 Visit Specs - 21 Postfix macOS · Linux · Self-hosted7.2 Visit Specs
- 22 grommunio From €1.99/mo Web · Windows · macOS · Linux7.1 Visit Specs
- 23 RabiMail From ₹199/mo Web · Windows · macOS · Linux6.7 Visit Specs
- 24 EVO Mail Server Windows6.6 Visit Specs
- 25 GreenArrow Engine On-Premises From $600/mo Linux6.6 Visit Specs
How this list is ordered. Specifiction scores each tool on how fully its maker documents it, whether its prices
are published, where the research puts it, the platforms it runs on and whether it can be tried for free (how we rank).
Makers can also buy a numbered place (how Specifiction is paid for).
Before choosing, compare the pricing model, check whether a free plan or trial is offered, and match the listed platforms to your setup. Platform labels include Linux, self-hosted, web, Windows, iOS and macOS.