This is my sogo.conf:

{
/* ***** Main SOGo configuration file **

• *
• Since the content of this file is a dictionary in OpenStep plist format, *
• the curly braces enclosing the body of the configuration are mandatory. *
• See the Installation Guide for details on the format. *
• *
• C and C++ style comments are supported. *
• *
• This example configuration contains only a subset of all available *
• configuration parameters. Please see the installation guide more details. *
• *
• ~sogo/GNUstep/Defaults/.GNUstepDefaults has precedence over this file, *
• make sure to move it away to avoid unwanted parameter overrides. *
• *

• **/

  / Database configuration (mysql:// or postgresql://) /
  SOGoProfileURL = "postgresql://sogo:sogo@localhost:5432/sogo/sogo_user_profile";
  OCSFolderInfoURL = "postgresql://sogo:sogo@localhost:5432/sogo/sogo_folder_info";
  OCSSessionsFolderURL = "postgresql://sogo:sogo@localhost:5432/sogo/sogo_sessions_folder";

  / Mail /
  //SOGoDraftsFolderName = Drafts;
  //SOGoSentFolderName = Sent;
  //SOGoTrashFolderName = Trash;
  //SOGoIMAPServer = localhost;
  //SOGoSieveServer = sieve://127.0.0.1:4190;
  //SOGoSMTPServer = 127.0.0.1;
  //SOGoMailDomain = acme.com;
  //SOGoMailingMechanism = smtp;
  //SOGoForceExternalLoginWithEmail = NO;
  //SOGoMailSpoolPath = /var/spool/sogo;
  //NGImap4ConnectionStringSeparator = "/";

  //SOGoAppointmentSendEMailNotifications = NO;
  //SOGoACLsSendEMailNotifications = NO;

  / Authentication /
  //SOGoPasswordChangeEnabled = YES;

  / LDAP authentication example /
  SOGoUserSources = (
  {
  type = ldap;
  CNFieldName = cn;
  IDFieldName = uid;
  UIDFieldName = uid;
  baseDN = "ou=People,dc=homeip,dc=net";
  bindDN = "uid=sogo,ou=People,dc=homeip,dc=net";
  bindPassword = sogo;
  canAuthenticate = YES;
  // displayName = "Shared Addresses";
  hostname = ldap://127.0.0.1:389;
  id = public;
  isAddressBook = NO;
  }
  );

  / SQL authentication example /
  /* These database columns MUST be present in the view/table:

• c_uid - will be used for authentication - it's the username or username@domain.tld)
• c_name - which can be identical to c_uid - will be used to uniquely identify entries
• c_password - password of the user, plain-text, md5 or sha encoded for now
• c_cn - the user's common name - such as "John Doe"
• mail - the user's mail address

• See the installation guide for more details
  */
  //SOGoUserSources =
  // (
  // {
  // type = sql;
  // id = directory;
  // viewURL = "postgresql://sogo:sogo@127.0.0.1:5432/sogo/sogo_view";
  // canAuthenticate = YES;
  // isAddressBook = YES;
  // userPasswordAlgorithm = md5;
  // }
  // );

  / Web Interface /
  //SOGoPageTitle = SOGo;
  //SOGoVacationEnabled = YES;
  //SOGoForwardEnabled = YES;
  //SOGoSieveScriptsEnabled = YES;

  / General /
  //SOGoLanguage = English;
  //SOGoTimeZone = America/Montreal;
  SOGoCalendarDefaultRoles = (
  PublicDAndTViewer,
  ConfidentialDAndTViewer
  );
  SOGoContactsDefaultRoles = (
  ObjectEditor
  );
  //SOGoSuperUsernames = (sogo1, sogo2); //This is an array - keep the parens!

  / Debug /
  //SoDebugBaseURL = YES;
  //ImapDebugEnabled = YES;
  LDAPDebugEnabled = YES;
  //SOGoDebugRequests = YES;
  PGDebugEnabled = YES;
  //MySQL4DebugEnabled = YES;
  //SOGoUIxDebugEnabled = YES;
  //WODontZipResponse = YES;
  //WOLogFile = /var/log/sogo/sogo.log;
  }