issue with cron

[Arizona Adams]

I have recently had an email start up that is for root on my server that
talks about a file called ddns.cron.pl, which seems to be missing. 
Debian is the OS and upon research on their page, there is nothing that
would detail the reason for this issue, nor a fix.  It is part of the
dhcp-dns package and my server seems to have the correct one.

I do not know what this ddns.cron.pl file would contain.  Has anyone
experienced this before?  Or have a direction in which to turn?

Thanks.

Kimi Adams