Arb-Scan is a remote banner scanner written in bash and Perl. It supports 12 different services banner checks (daytime, ftpd, sshd, smtpd, domain, finger, httpd, pop2, pop3, nntp, imapd and snpp). It features IP file reading, logging, random IP scanning, ftp anonymous login checking and VRFY/EXPN smtp checking.
JeguePanel is a panel to provide easy management of GNU/Linux servers. It makes services configuration (email and samba) much more easy and efficient, and handles user and permissions management. It's integrated with monitoring tools and a lot of control programs like anti-virus, anti-spam, reports, etc. It has English, Portuguese, and Spanish translations. It can use OpenLDAP, PostgreSQL, or MySQL as a backend, and has full integration with Active Directory. It will show different interfaces to users based on permission levels.
XamimeLT is an email scanner which encapsulates your existing sendmail or Postfix server setup. It scans both incoming and outgoing email. It can scan for email viruses, unwanted file types (eg. EXE, BMP, MPEG) and file names (eg. prettypark.exe), spam, and almost anything you care to search for in an email. It can also be used to scan for text snippets within emails and to insert disclaimers into outbound emails. XamimeLT was formerly known as "Inflex".
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.
pb.WebMAUI (Web-Mail Administration User Interface) is a Web-based administration tool for managing complex mail domains, mail user accounts, server-based filtering including "out-of-office mail replies", and mail-related tasks. User quota managment is supported as well. Currently, the Courier mail suite is used, but support for other MTAs is planned.