MyDNS was working great on my machine until i’ve decided to implement DomainKeys and DKIM support for my e-mail system. As you probably know DKIM and DomainKeys require a long TXT record with a public key to be inserted in the DNS.

MyDNS started giving me problems when i was query-ing the DNS for this TXT record which has around 230 characters. MyDNS was crashing with the following log entry:

mydns: out of memory: Cannot allocate memory

The solution for this was replacing MyDNS 1.0.0 with the brand new MyDNS-NG ( Next Generation ) 1.2.8.26. Everything came back to normal now and It’s working like a charm.

You can get the mydns-ng 1.2.8.26 from here : http://sourceforge.net/projects/mydns-ng/