Smtp Auth

Some articles on smtp auth, smtp, auth:

Comparison Of Mail Servers - Authentication
... Mail server SMTP AUTH POP before SMTP APOP Filesystem Database LDAP Other agorum core Yes No No No Yes Yes PLAIN, LOGIN, CRAM-MD5, NTLM Apache James Yes ? ? ? Yes Yes PLAIN, LOGIN Atmail Yes Yes ... Also supports X.509 PKI auth via STARTTLS and EXTERNAL ... PAM, MySQL, PostgreSQL, SQLite, LDAP, Active Directory(LDAP), DCE, Kerberos 4 and 5, proxied IMAP auth, getpwent, shadow, SIA, Courier Authdaemon ...
Simple Mail Transfer Protocol - Security and Spamming
... The original SMTP specification did not include a facility for authentication of senders ... Subsequently, the SMTP-AUTH extension was defined by RFC 2554 ... The SMTP extension (ESMTP) provides a mechanism for email clients to specify a security mechanism to a mail server, authenticate the exchange, and negotiate a security profile (Simple Authentication ...