Hello,
i'm linux and windows sys admin since almost 10 years.
i can help you to setup and configure your server agains all kind of attacks.
you can check my profile and pasts jobs for security to understand my knowledge.
if you have any questions don't hesitate to contact me.
have a good day.
Hi, I am a Certified Information Security Expert and a Certified Ethical Hacker. I have 8 years of experience in this field and I can do this job for you as soon as possible. Have you tried to setup the mail server yourself as of now?