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  1. #default_process_limit = 100
  2. #default_client_limit = 1000
  3. # Default VSZ (virtual memory size) limit for service processes. This is mainly
  4. # intended to catch and kill processes that leak memory before they eat up
  5. # everything.
  6. #default_vsz_limit = 256M
  7. # Login user is internally used by login processes. This is the most untrusted
  8. # user in Dovecot system. It shouldn't have access to anything at all.
  9. #default_login_user = dovenull
  10. # Internal user is used by unprivileged processes. It should be separate from
  11. # login user, so that login processes can't disturb other processes.
  12. #default_internal_user = dovecot
  13. service imap-login {
  14. inet_listener imap {
  15. #port = 143
  16. }
  17. inet_listener imaps {
  18. #port = 993
  19. #ssl = yes
  20. }
  21. # Number of connections to handle before starting a new process. Typically
  22. # the only useful values are 0 (unlimited) or 1. 1 is more secure, but 0
  23. # is faster. <doc/wiki/LoginProcess.txt>
  24. #service_count = 1
  25. # Number of processes to always keep waiting for more connections.
  26. #process_min_avail = 0
  27. # If you set service_count=0, you probably need to grow this.
  28. #vsz_limit = $default_vsz_limit
  29. }
  30. service pop3-login {
  31. inet_listener pop3 {
  32. #port = 110
  33. }
  34. inet_listener pop3s {
  35. #port = 995
  36. #ssl = yes
  37. }
  38. }
  39. service lmtp {
  40. unix_listener lmtp {
  41. #mode = 0666
  42. }
  43. # Create inet listener only if you can't use the above UNIX socket
  44. #inet_listener lmtp {
  45. # Avoid making LMTP visible for the entire internet
  46. #address =
  47. #port =
  48. #}
  49. }
  50. service imap {
  51. # Most of the memory goes to mmap()ing files. You may need to increase this
  52. # limit if you have huge mailboxes.
  53. #vsz_limit = $default_vsz_limit
  54. # Max. number of IMAP processes (connections)
  55. #process_limit = 1024
  56. }
  57. service pop3 {
  58. # Max. number of POP3 processes (connections)
  59. #process_limit = 1024
  60. }
  61. service auth {
  62. # auth_socket_path points to this userdb socket by default. It's typically
  63. # used by dovecot-lda, doveadm, possibly imap process, etc. Users that have
  64. # full permissions to this socket are able to get a list of all usernames and
  65. # get the results of everyone's userdb lookups.
  66. #
  67. # The default 0666 mode allows anyone to connect to the socket, but the
  68. # userdb lookups will succeed only if the userdb returns an "uid" field that
  69. # matches the caller process's UID. Also if caller's uid or gid matches the
  70. # socket's uid or gid the lookup succeeds. Anything else causes a failure.
  71. #
  72. # To give the caller full permissions to lookup all users, set the mode to
  73. # something else than 0666 and Dovecot lets the kernel enforce the
  74. # permissions (e.g. 0777 allows everyone full permissions).
  75. unix_listener auth-userdb {
  76. #mode = 0666
  77. #user =
  78. #group =
  79. }
  80. # Postfix smtp-auth
  81. #unix_listener /var/spool/postfix/private/auth {
  82. # mode = 0666
  83. #}
  84. # Auth process is run as this user.
  85. #user = $default_internal_user
  86. }
  87. service auth-worker {
  88. # Auth worker process is run as root by default, so that it can access
  89. # /etc/shadow. If this isn't necessary, the user should be changed to
  90. # $default_internal_user.
  91. #user = root
  92. }
  93. service dict {
  94. # If dict proxy is used, mail processes should have access to its socket.
  95. # For example: mode=0660, group=vmail and global mail_access_groups=vmail
  96. unix_listener dict {
  97. #mode = 0600
  98. #user =
  99. #group =
  100. }
  101. }