Sprog is a graphical tool that anyone can use to build programs by plugging parts together. In Sprog jargon, the parts are known as 'gears' and they are assembled to make a 'machine'. Gears are selected from a palette and dragged onto the Sprog workbench, where they can be connected together. Options can be set using a properties dialog on each gear. When assembly is complete, the machine can be run, reconfigured, or re-run.
dkimproxy is an SMTP proxy that signs and/or verifies Domain Keys Identified Mail (DKIM). It is designed to work with Postfix. It comprises two separate proxies: an "outbound" proxy for signing outgoing email, and an "inbound" proxy for verifying signatures of incoming email. With Postfix, the proxies can operate as either Before-Queue or After-Queue content filters.
Dkfilter is a DomainKeys implementation for the Postfix mail transfer agent. It is implemented as two filters (or SMTP proxies). There is an "outbound" filter for adding DomainKeys signatures to outgoing email and an "inbound" filter for verifying signatures of incoming email. The filters can be plugged into Postfix as either Before-Queue or After-Queue Postfix content filters. For more information about DomainKeys, see http://antispam.yahoo.com/domainkeys.
SwenDeleter tries to identify email messages infected with the Swen worm in POP3 mailboxes and delete them on the server. It applies some heuristics to the headers and size of the messages, in order to avoid downloading the actual email, thus making retrievals less taxing. It has both interactive and nonstop modes.
tgen generates a Web site from a collection of input files of a variety of types, using a set of registered HTML autogenerators. This allows, for example, the generation a Web site consisting of plain text pages, EtText formatted files, man or POD documentation, and/or custom formats, with a consistent and attractive look-and-feel. It is a driver program; the actual conversion work is done by a set of plugin filters or "autoformatters" (named *2hts[.*]).
The HTML::Defaultify Perl module is designed to allow CGI programmers to present forms with some fields filled in, which is handy for letting users correct bad input, show records to be edited, and much more. The main function, defaultify(), takes any block of HTML and a hash of field names and values, and returns the HTML with the form fields set to those values. Value lists for multiple same-named fields are supported, as are pages with multiple forms. Several different input formats are supported for compatibility with existing tools.