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Linux Email Servers, Spam, Viruses and Security Issues


  I am going to provide email services to users. The configuration is:

Linux RedHat 7.3
Postfix (latest version)
Openwebmail (for the client)
Real users (entries in the /etc/passwd file)
 I have taken the standard method of not giving users shell access, by setting the shell to /bin/false.

  I would like to know if I have to instal any anti-virus software for the servers. That is whether any user with an account can compromise the system by sending emails or otherwise.

  Also what are the best open source solutions for stopping spam?

  I understand that this may require detailed answers and am willing to compensate with equity and otherwise. Feel free to contact the root user of our site by email.


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1 Solution
have a check here http://clamav.elektrapro.com/ to see this can help
RuletheNetAuthor Commented:
Thanks paullamhkg, I appreciate your help!!!
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