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Th3Inspector is a Perl- and shell-based, all-in-one information-gathering toolkit built to quickly enumerate public and semi-public data about targets (domains, IPs, phone numbers, mail servers, etc.). It exposes a single command-line entrypoint (Th3inspector.pl) with many switches for common reconnaissance tasks — examples include website info, whois, MX lookup, geo-IP, subdomain discovery, CMS detection, port scanning, and Cloudflare real-IP resolution — so a user can chain many checks from one script. The project provides simple install wrappers for Linux, Android/Termux and even instructions for Windows (Perl + CPAN modules), and includes helper scripts to update or install dependencies automatically. ...
ddclient is a long-standing, Perl-based Dynamic DNS client that keeps DNS records updated when your public IP changes. It supports a wide roster of DNS providers and APIs, allowing both A and AAAA updates so IPv4 and IPv6 hosts remain reachable. The client can discover your current address via network interfaces or external check services, which is crucial for NAT’d home connections. It runs as a daemon or from cron, with configurable intervals, SSL/TLS for provider communication, and robust...
A simple Milter which checks the senders and recipients email address are valid (i.e. a MX server will accept mail for it).
Written in PERL using the Sendmail::Milter interface, this caching milter signifcantly reduces the ammount of UCE/UBE.
perl-dyndns is project to provide cross platform (Win, Mac, Linux) solution for DHCP ISP-connected users, that can obtain permanent DNS, MX and webhosting service for http://www.dyndns.org/. PROJECT MOVED. See Github user jaalto.
Antispam, antivirus, authenticating SMTP daemon. Integrates with qmail, sendmail, stunnel, etc. It's simple Perl, so you can hack it to suit your needs. Supports RBLs, mx on from, bounce evil phrases, virus scanning...