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Instead of OpenSMTPD

OpenSMTPD alternatives

Apps that do what OpenSMTPD does, from the email server software list, the ones you can start free with first.

  1. 1

    poste.io

    Free plan APILinuxSelf-hosted+1
    7.1 Free plan · paid from $349/yr Visit site
  2. 2

    Docker Mailserver

    Free plan LinuxSelf-hosted
    7.0 Open source Visit site
  3. 3

    Mail-in-a-Box

    Free plan APILinuxSelf-hosted+1
    7.0 Open source Visit site
  4. 4

    Modoboa

    Free plan LinuxSelf-hostedWeb
    7.0 Free plan Visit site
  5. 5

    SmarterMail

    Free plan AndroidiPhoneLinux+3
    7.0 Free plan · paid from $500 · 30-day trial Visit site
  6. 6

    Stalwart Mail Server

    Free plan APILinuxMac+3
    7.0 Free plan · paid from $2.40/yr · 30-day trial Visit site
  7. 7

    Zimbra Collaboration

    Free plan AndroidiPhoneLinux+4
    6.9 Free plan Visit site
  8. 8

    grommunio

    Free plan AndroidiPhoneLinux+3
    6.8 Free plan · paid from €1.99/user/mo Visit site
  9. 9

    Pegasus Mail

    Free plan Windows
    6.7 Free plan Visit site
  10. 10

    Postfix

    Free plan LinuxMacSelf-hosted
    6.6 Open source Visit site
  11. 11

    KumoMTA

    Free plan Linux
    6.2 Free plan Visit site
  12. 12

    Whitemail

    Free plan AndroidiPhoneWeb
    6.1 Free plan · pricing on request Visit site
  13. 13

    Stalwart Mail Server

    by Stalwart Labs
    Free plan
    5.7 Visit site
  14. 14

    Synology MailPlus Server

    Free plan AndroidiPhoneWeb
    5.7 Free plan Visit site
  15. 15

    Microsoft Exchange Online

    by Microsoft Exchange Online
    Paid AndroidiPhoneMac+2
    5.6 Visit site
  16. 16

    RabiMail

    Paid AndroidiPhoneLinux+3
    4.9 From ₹199/mo · 30-day trial Visit site
  17. 17

    CommuniGate Pro

    Paid LinuxMacWindows
    4.8 Pricing on request Visit site
  18. 18

    EVO Mail Server

    Paid Windows
    4.7 From $259 Visit site
  19. 19

    GreenArrow Engine On-Premises

    Paid Linux
    4.7 From $600/mo Visit site
  20. 20

    Mailbux Self-Hosted

    Paid Linux
    4.5 From $1,499 Visit site
  21. 21

    MDaemon Email Server

    Paid WebWindows
    4.2 30-day trial Visit site

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