how i can protect mailing server from external and internal

Question

how i can protect mailing server from external and internal attacks

Francis · Answer

Hope the below links will guide you: http://www.experts-exchange.com/Security/Q_28169078.html http://windowsitpro.com/exchange-server/stop-email-server-attacks https://www.vircom.com/top-10-tips-to-secure-your-email-server/