Imapsync lists of the Email IMAP providers supported and the IMAP server software applications supported. (back to menu)

To know whether your IMAP server is a widespread choice, take a look at http://openemailsurvey.org/ or the Shodan IMAP query result.
The short answer is that if you're not using the famous Dovecot then you're in a niche!

First, the email IMAP hosting providers:

  1. 1und1 H mimap1, H mibap4(http://www.1und1.de/)
  2. a1.net imap.a1.net IMAP4 Ready
  3. Earthlink webhosting (https://www.earthlink.net/) uses BigFoot imap server.
  4. Gimap (Gmail imap) (http://mail.google.com/)
  5. GMX IMAP4 StreamProxy. (http://www.gmx.com/)
  6. Godaddy IMAP (since Godaddy runs Courier) (https://www.godaddy.com/)
  7. hMailServer (https://www.hmailserver.com/)
  8. Hostgator, Hostgator imap server software is Dovecot (ghost.mxroute.com). https://www.hostgator.com/
  9. Hostinger, Hostinger imap server software is Dovecot (imap.hostinger.com). https://www.hostinger.com/
  10. Hotmail hotmail.com is outlook.com and live.com now.
  11. Mailfence (https://mailfence.com/)
  12. MXroute, MXroute imap server software is Dovecot. https://mxroute.com/
  13. Office 365 (http://office365.com)
  14. Outlook.com can be IMAP accessed via host imap-mail.outlook.com.
  15. PowerMail (French Email provider) (https://www.powermail.fr/
  16. RackSpace hoster secure.emailsrvr.com http://www.rackspace.com/)
  17. Yahoo (http://www.yahoo.com/)

Second, the email IMAP server software tools:

  1. Amazon AWS WorkMail IMAP server
  2. Apple Server
  3. Archiveopteryx (http://www.archiveopteryx.org/)
  4. ArGoSoft http://www.argosoft.com/
  5. Atmail https://www.atmail.com/
  6. Axigen (https://www.axigen.com/)
  7. BigFoot (Derek Snider)
  8. BincImap (http://www.bincimap.org/)
  9. BlueMind https://www.bluemind.net/
  10. ClearOS https://www.clearos.com/ uses Cyrus as IMAP backend server.
  11. CommuniGatePro (http://www.communigate.com/)
  12. Courier (http://www.courier-mta.org/imap/)
  13. Critical Path
  14. Cyrus IMAP (https://www.cyrusimap.org/)
  15. David Tobit (https://tobit.software/)
  16. DBMail (http://www.dbmail.org/)
  17. DBOX (http://www.dbox.handshake.de/).
  18. Deerfield VisNetic MailServer (http://www.deerfield.net/products/visnetic-mailserver/)
  19. dkimap4
  20. Domino (IBM Notes) (http://www-03.ibm.com/software/products/en/ibmnotes)
  21. Dovecot (http://www.dovecot.org/)
  22. Emailchemy from weirdkid.com (https://weirdkid.com/emailchemy/). Use option --noabletosearch
  23. Eudora WorldMail (http://www.eudora.com/worldmail/)
  24. Exchange Server (http://www.microsoft.com/exchange/)
  25. FirstClass. FirstClass is hard to migrate so read the FirtClass FAQ (http://www.firstclass.com/)
  26. FortiMail (https://www.fortinet.com/.../fortimail.html)
  27. FTGate (http://www.ftgate.com/)
  28. Fusemail (https://www.fusemail.com/).
  29. Gromox/Grammm IMAP server (https://docs.grammm.com/)
  30. Grommunio (https://grommunio.com/)
  31. Groupwise IMAP (Novell). Buggy so see the FAQ item about Groupwise (http://www.novell.com/products/groupwise/)
  32. IceWarp (https://www.icewarp.com/)
  33. IdeaImapServer
  34. IMail (http://www.imailserver.com/)
  35. iPlanet Messaging server (http://en.wikipedia.org/wiki/Oracle_Communications_Messaging_Server)
  36. iRedMail, iRedMail imap server software is Dovecot (http://www.iredmail.org/)
  37. James, the Java Apache Mail Enterprise Server (https://james.apache.org/)
  38. Kerio (https://www.kerio.com/)
  39. Kolab. Kolab groupware uses Cyrus.(https://kolab.org/)
  40. Kopano (https://kopano.com/) (successor of Zarafa)
  41. Mail2World (http://www.mail2world.com/)
  42. MailEnable (http://www.mailenable.com/)
  43. MDaemon (http://www.altn.com/)
  44. Mercury (http://www.pmail.com/)
  45. Mirapoint (https://www.icewarp.com/mirapoint/)
  46. Netscape Mail Server
  47. Netscape Messaging Server
  48. OpenMail IMAP server
  49. OpenWave (http://www.openwave.com/)
  50. Oracle Beehive (http://www.oracle.com/technetwork/middleware/beehive/overview/)
  51. Parallels Plesk Panel (http://www.parallels.com/)
  52. Pegasus Mail (by David Harris) (http://www.pmail.com/
  53. Perdition (https://projects.horms.net/projects/perdition/
  54. ProtoMail (https://protonmail.com/
  55. QQMail IMAP4Server (See FAQ) https://en.mail.qq.com/
  56. Qualcomm Worldmail (http://www.eudora.com/worldmail/)
  57. Rockliffe Mailsite (http://www.mailsite.com/)
  58. Samsung Contact IMAP server
  59. Scalix (http://www.scalix.com/)
  60. Sendmail Mail Store IMAP4rev1
  61. SmarterMail (http://www.smartertools.com/)
  62. Softalk Workgroup Mail (http://www.softalkltd.com/products/download_wm_v7.asp).
  63. SunONE Messaging server (SUN JES - Java Enterprise System) (http://www.oracle.com/)
  64. Sun Java(tm) System Messaging Server (http://www.oracle.com/)
  65. Surgemail (http://netwinsite.com/surgemail/)
  66. Tegu mail server (https://mbk-lab.ru/)
  67. UW-imap servers (http://www.washington.edu/imap/)
  68. VMS (https://www.vmssoftware.com/)
  69. Amazon WorkMail (https://aws.amazon.com/fr/workmail/)
  70. Xeams/Synametrics (http://www.xeams.com/)
  71. Zarafa (http://www.zarafa.com/)
  72. Zimbra (http://www.zimbra.com/)
  73. Zentyal (Zinc) (http://www.zentyal.org/)
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This document last modified on Wednesday August 13, 2025 ($Id: imapservers.shtml,v 1.66 2025/08/13 14:19:32 gilles Exp gilles $)
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