Openmailadmin is a little administration interface to every complete IMAP mail server daemon. It supports every feature IMAP provides, and fits in most MTA configurations. A key feature is the non-standard, generic administration hierarchy which not only seperates "normal users" from "administrators", but enables the mailserver-master to create instances between them. You will be able to let other users create their own sub-users and thus either share a single mail server between different organizations or project your company's employee structure. It excels with features such as regex addresses and folder ACL management.
P3Scan is a full transparent proxy server for email clients. It runs on a Linux box with iptables (for port redirection). It can be used to provide email scanning from the Internet to any internal network, and is ideal for helping to protect your "Other OS" LAN from harm, especially when used in conjunction with a firewall and other Internet proxy servers. It is designed to enable scanning of incoming email messages for viruses, worms, trojans, spam, and harmful attachments. Because viewing HTML email can enable a spammer to validate an email address (via Web bugs), it can also provide HTML stripping.
POP 3 client is a PHP class that allows you to access mail boxes using the POP3 protocol. It provides a stream wrapper class for retrieving messages like files using the PHP fopen function, establishes secure connections using TLS, accesses servers using normal and APOP login methods, supports authentication mechanisms such as PLAIN, LOGIN, CRAM-MD5, NTLM (Windows or Linux/Unix via Samba) via the PHP SASL library, and supports listing of message sizes, retrieval of a message at once, separating the headers from the body, retrieving a message in small chunks to not exceed the available memory, and deleting messages.
The POP and IMAP troubleshooter serves to diagnose and solve connection problems from client machines to email services. It reads the client configuration files (Outlook, Windows Mail, Thunderbird, etc.), checks the individual settings, and then attempts to create POP, IMAP, and SMTP connections using these settings. The troubleshooter is coded in C++ using the Qt environment. It can be used generically, or can be customized for the demands of a particular email service.
popbsmtpd watches syslog for successful POP and IMAP logins, and writes IP address entries to a database to permit SMTP mail relaying for a configurable duration. No changes to any other software are required, and it can process logins where the IP address and the authentication success are recorded on separate log entries (i.e., when using stunnel). It has a user-configurable scheme for recognizing and extracting values from log entries, making it possible to use with many POP and IMAP daemons without requiring any programming changes. These configurations can be tested using sample log data.
POP-Before-SMTP-Auth is a POP before SMTP daemon for Dovecot and Postfix that works by scanning mail server log files. The line-matching regex can be changed from the configuration file, in case Dovecot's logging format changes, and also to adapt the script for use with something besides Dovecot. Presently the script requires that the IP address appear on a single line with the successful login in the log file.