Add Non-Standard Web Link in Mac Mail

Question

Does anyone know how to add a non-standard web link? The add link dialog box does not like my url.
I need to add a link like this: http://someserver100/index.html.
It disables the "OK" button as soon as I add the "100" after "someserver".
Prior to the Leopard upgrade I never had a problem doing this. Now it seems that Mail is trying to be too clever. Please help, this is an important business need for me to be able to send links like this.

Answer 1

I didn't originally go deep into detail as not to bore, but maybe the details will make the difference.
I am a web developer. I have a client that I vpn into to make web updates. The server that I work on is a testing / development server, not the outside world facing production server. The server is not viewable via a domain name. So I can not get to it by typing www.domainname.com. Instead, the client's IT guys have a host name set up for the server that I need to use due to some of the back end technology that serves the pages.
The server name is "development100".
In order for me to view pages on this server, I had to make an entry in my host file so my browser would know what ip address "development100" is associated with. That way whenever I type "http://develoment100" into my browser's url bar to proof my web work it would resolve me to the testing / development server.
Now, once my changes are done and posted, I need to send a notification email to the IT staff that servers two purposes. First, it gives them an exact url laundry list of what files have have updated. Second, it gives them a link to click for each item that will allow them to proof that html, jpeg, etc.
A typical item in this list would like like this: http://development100/index.html
That link should send them directly to the index page on the server for example. I have be using this system of building the notification emails with these links for over five years and prior to upgrading to Leopard, it always worked.
Now, if I try to "Add Link" and type "http://development100/index.html" in the dialog box. The "OK" button will become disabled as soon as I key in the first number in that link.
If I don't "Add Link" and just key "http://development100/index.html" into the body of the email the link will cut off at the first number as well. So the link will look like this: "http://development"
Sorry for the long explanation, but I think that it is necessary. The answer may just be that Apple is trying to verify / qualify links automatically and wont let numbers go in the link name without a .com / suffix. Thanks for the help.