[NTLUG:Discuss] Anti-Virus/Anti-Spamming for Sendmail on Linux

[Bob Byron]

I am using RedHat 8.0.

I want to add anti-virus and anti-spamming software to our email server.
I am currently using sendmail.  To clarify, this is going on the server and
not on individual machines.  Basically, as email passes through this
machine, when a virus is found, I want the server to send the email
as an attachment to an email message saying "The attached email was 
sent to you and appears to contain a virus.  Do not open this email without
talking to the sender and are assured of its validity."  The actual verbiage
could be different, but I do want to make sure they get there email even
if it does contain a virus.

In the case of spam, I would simply like the software to prepend 
[spam] to the subject of those messages it thinks are spam.  It would be 
nice if the user can train the anti-spamming virus by sending back 
messages that it thinks are spam vs. those that are legitimate.

I would want the virus dictionary to be updated very quickly.  Any 
suggestions on a good package?  Open source and free is always
preferable, but given the nature of what is required, I am just looking
for a good value on what I would have to pay for the software and 
update service.

Thank You,
Bob Byron
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