I need to protect 10 mailboxes in small organization. They have Exchange 2010 Standard and premium CALs for all users.
How much will be quality of filtering spam, if I will use built-in antispam plus I will active Premium antispam function?
Does the antispam system find if there is a virus in message?
Do you recommend to use this antispam filtering or is better to use third party software such as ESET Mail Security 4?