Enda Nagle wrote:

I have just recently been introduced to OTRS and have just installed it on an in-house server for managing incoming mails.

I didn't install the DNS server on the server, and am now getting this error in the system log "Can't load Net::DNS, no mx lookups possible". The ticket mails are all coming out properly, and I have DNS set in the router config.

Should I install the DNS server or is it ok to just use it as I am?

You're okay, but as long as you don't install Net::DNS (this is not a DNS server, but a Perl module) OTRS can't perform MX lookups. You can either disable MX lookups in the config (if you don't want to do them) or install that Perl module so OTRS can do them. $OTRS_HOME/bin/otrs.checkModules gives you an overview of the modules OTRS uses and whether they're installed. Nils Breunese.