[clamav-users] clamscan vs clamdscan

[Arjen de Korte]

Citeren "G.W. Haywood via clamav-users" <clamav-users at lists.clamav.net>:

> Hi there,
>
> On Sat, 9 May 2020, Paul Kosinski via clamav-users wrote:
>
>> On our mailserver, we run clamdscan, since mail arrives frequently (!).
>
> On a mail server most people would use a milter, e.g. clamav-milter,
> which is part of the ClamAV package.

It depends. There are other ways to filter before accepting messages.  
I use the proxy filter in Postfix to scan messages with Amavisd (which  
will scan for both viruses and spam). No milter involved.

> The use of milters offers many benefits.  It enables a mail server to
> inspect a message during the SMTP conversation, allowing the server
> (for example) to reject unwanted mail at the earliest possible time,
> before accepting the message.  This can avoid wasting resources, and
> leaks of information to the sender such as the fact that a recipient
> address actually exists and accepts mail (valuable information to the
> typical spammer, because it is saleable).