[Dovecot] anti-spam+anti-malware suggestions

Hello people,

I am using now qmail in cluster with LDAP + Interscan Messaging Security Suite from Trendmicro.

I need to develop a new solution with:

• postfix
• dovecot
• anti-spam
• anti-malware.

I am thankful any help or suggestion for anti-spam and anti-malware.

Thanks in advance!

-- :) cumprimentos

José Luís Faria Network Eng./Administrador de Sistemas Departamento de Informática Universidade do Minho Braga, Portugal