![]() These client applications provide users with E-mail, groupware, IM/Presence, telephony, and other services by connecting to the CommuniGate Pro Server via its extensive set of supported standard protocols: SMTP, SIP, IMAP, XMPP, LDAP, XIMSS, CalDAV, WebDAV, and many other. The CommuniGate Pro Server application processes requests sent over the network by a variety of clients - communication applications installed on desktops, laptops, mobile devices and other end-user systems. The CommuniGate Pro Server application is installed on a server computer (or on a multi-server cluster) running any version of Unix, Linux, Microsoft Windows, Mac OS X, or other supported operating system. Also supports X.509 PKI auth via STARTTLS and EXTERNAL.CommuniGate Pro is a client - server platform. Supports all Cyrus SASL authentication methods except for APOP. Internal, LOGIN, PLAIN, X.500 (DAP), LDAP, OpenLDAP, Active Directory, eDirectory, Kerberos, etc. Alternate checkpassword utilities support authentication against PAM, LDAP, and databases. ![]() The original supports only LOGIN and PLAIN. Pluggable Authentication Modules, GSSAPI, CRAM-MD5, DIGEST-MD5, APOP, PLAIN, LDAP, CMU SASL library, Kerberos Supports adding new authentication mechanisms through custom backends. Plain, Login, CRAM-MD5, Digest-MD5, Certificateīy default PLAIN and LOGIN over SSL only, Certificates, bsd_auth and PAM. Internal, LOGIN, PLAIN, CRAM-MD5, Netware, LDAP?, partial NT Domain NT Domain, Active Directory, Local Directory ![]() NT Domain, Active Directory, PLAIN, LOGIN, NTLM, SCRAM-MD5, CRAM-MD5 Kolab employs Cyrus and Postfix and thus supports all Cyrus SASL authentication methods and X.509 PKI auth via STARTTLS and EXTERNAL. Proxy to other server, any other mechanism via AUTH plugins.Īctive Directory, Windows authentication, CRAM-MD5, PLAIN, LOGIN Many mechanism (SMTP callout, Dovecot SASL, REST, etc.) via script. PLAIN, LOGIN, CRAM-MD5, DIGEST-MD5, APOP, ODBC, Active Directory, NT Domain APOP and SASL mechanisms: ANONYMOUS, PLAIN, LOGIN, CRAM-MD5, DIGEST-MD5, SCRAM-SHA1, EXTERNAL, GSSAPI, NTLM, OTP, SKEY, RPA.Ĭyrus SASL, Dovecot SASL, GNU SASL, CRAM-MD5, Heimdal GSSAPI, PLAIN, LOGIN, SPA PAM, MySQL, PostgreSQL, SQLite, LDAP, Active Directory(LDAP), Kerberos 5, proxied IMAP auth, getpwent, shadow, SIA, BSDauth, Vpopmail. Not an SMTP server, but offers SASL to MTAs. Uses Cyrus SASL authentication library for support for other mechanisms: Berkeley DB, GDBM, or NDBM (sasldb), PAM, MySQL, PostgreSQL, SQLite, LDAP, Active Directory(LDAP), DCE, Kerberos 4 and 5, proxied IMAP auth, getpwent, shadow, SIA, Courier Authdaemon, httpform, APOP and SASL mechanisms: ANONYMOUS, CRAM-MD5, DIGEST-MD5, EXTERNAL, GSSAPI, LOGIN, NTLM, OTP, PASSDSS, PLAIN, SRP Supports X.509 PKI auth via STARTTLS and EXTERNAL. Managed by Courier authentication library which can use PAM, Userdb, PostgreSQL(beta), MySQL, LDAP, and EXTERNAL. Also supports X.509 PKI auth via STARTTLS/SSL GSSAPI, CRAM-MD5, DIGEST-MD5, APOP, CLRTXT, LOGIN, PLAIN, LDAP, InternalĪctive Directory (LDAP), CLRTXT, CRAM-MD5, DIGEST-MD5, APOP, GSSAPI, NTLM, MSN, SESSIONID, External Authentication Plug-in. Proprietary with OSS parts, Freeware and paid editions Proprietary with OSS parts, a community (Freeware) and 3 paid editions (SMB, Enterprise, Hosting) Proprietary/SaaS, with open-source parts Proprietary (free version: 5 domains, 5 users, 5 groups) Proprietary, Embedded, Optimized for Email and Groupware
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