eximstate is a server/client project for monitoring a number of Exim installations. The clients are installed on each of the mailservers running exim and the server runs on the monitoring server. Each client reads the queue on the mail server and sends the total number of messages, the number of frozen message, and the number of bounce messages to the server. The server stores this data and uses RRDtool to make a graphical representations of the data.
UMPL for XmailServer is a Web frontend for managing Xmailserver and Webmailsolution. Different frontends are presented for root, the postmasters of virtual domains, and end-users. It includes support for managing finger, POP3, SMTP, and Webmail in German, English, Dutch, Italian, and Spanish.
dialin-spammer-block can be used to detect and block dialin clients that try to send send spam over your mailserver. A spammer is detected by watching the mailserver logfile and counting the mails sent by each dialin client. If a client exceeds the limit of mails that may be sent during a certain amount of time, the client will be blocked to relay further mails on the mailserver until the RADIUS server reports that the client has disconnected.