De sobra es sabido que no hay ninguna herramienta antispam y/o antivirus ferpecta pero bueno, al menos intento minimizar el problema antes de que entre a la red local.
¿Que es P3Scan?
This is a full-transparent proxy-server for email clients. It runs on a Linux box with iptables (for port re-direction)[1]. 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.
¿Que es Clamav?
Clam AntiVirus is a GPL anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. Most importantly, the virus database is kept up to date .
¿Que es SpamAssasin?
SpamAssassin is a mail filter to identify spam. It is an intelligent email filter which uses a diverse range of tests to identify unsolicited bulk email, more commonly known as Spam.
De momento me he enviado correos con el "virus eicar" ( thanks Lero ;* ) , los ha detectado y los ha convertido en un correo sin virus. He probado a enviar correos con el mismo "virus" y efectivamente no ha llegado al destinatario pero no ha generado ningun correo avisando del evento (¿Me he dejado algo por configurar?)
El tema del spamassasin aun no se como reaccionara por que solo he obtenido un 2.1 sobre 5.0 de puntuacion con un correo que he probado con la tipica frase de "enlarge your penis" xD
De todas formas me mola mucho mas esta opcion que la de tener instalado ClamMail en todos los clientes
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