I have been 'invited' by Novell on a scheme for free software updates for a year, i would rather not take them up on this offer.
Why ? for they apply fake email return headers to any mail that is not delivered to them which goes to localhost.com and the host 10.11.12.13 if email cannot be delivered – it not an proper internet address but a 'local' range, and a range we don't have setup so – when the message is not delivered through another novell fault
I am thinking M*pp*ts – its a vowel aversion.
I will have to delete them from the queue. Professionals …

If these people think that's good, and would like me to buy stuff. Hmmm no thanks.
While Im sure Novell's products are great….
What is the significance of 10.11.12.13 in re to genetics SPECIFICALLY
[10.11.12.13] is a rfc 1918 reserved address space which you can locally route stuff on a private network (there are two others too), but if you use it as in Novells case as a return server then it is non routable.
This has nothing to do with genetics