Getting an email server to work in 2013 is relatively easy. Fixing it quickly without losing anything when a problem arises and things pile up is not. Having y

Getting an email server to work in 2013 is relatively easy. Fixing it quickly without losing anything when a problem arises and things pile up is not. Having your worst damage in case of critical failure being only 2.5 hours of delay, on a very large scale architecture ? That's genuinely great work. 2.5 hours is not even a failure in email terms.