Less than 1 week –
Less than 10 hrs/week –
Our Zimbra server was used for sending spam, i saw the mail queue went up very fast (in 5 min we had 50.000 mails in queue and message count was 900.000), i blacklisted the ip address where the spam was sending from. But to be sure everything is secure we are searching someone who can secure the server further. So checking everything on breaches or vulnerabilities. Please describe in cover letter what you are planning to do on ...