I urgently need (and would even pay for) a new DO tutorial to implement a Mail server (using Postfix, Dovecot, MySQL, SpamAssassin, ClamAV and Roundcube). DO's current tutorial dates back to 1 April 2014 and refers to Ubuntu 12.04...
Seeing it's 2018 and Ubuntu 18.04 LTS was recently released, it'd be great to see an up to date tutorial.
Unfortunately, the various articles and tutorials I find via Google are also massively out of date and consequently don't work with today's latest versions of the necessary / associated applications.
Alternatively, if there's any freelancers out there that could actually implement this, I'd be willing to pay!