amavisd-new is described as 'High-performance interface between mailer (MTA) and content checkers: virus scanners, and/or SpamAssassin. It is written in Perl for maintainability, without paying a significant price for speed. It talks to MTA via (E)SMTP or LMTP, or by using helper programs' and is a Anti-Virus app in the security & privacy category. There are 2 alternatives to amavisd-new for Linux, Web-based, BSD and Oracle Solaris. The best amavisd-new alternative is MailRoute. It's not free, so if you're looking for a free alternative, you could try MIMEDefang.