"send to" is not working for outside email addresses

Do you mean SBS2011.
If so: Rerun three wizards in the SBS console> Home:
1:Connect to the internet
2: Set up your internet address
3: Configure a smart host..

If still no go:
Network>Connectivity>Fix My network (on right hand side)
Hope that helps
Olaf

Can you give us a little more information?

Is this Smal Business Server 2011?
If so you will find all these wizards in the Windows SBS Console.
Start> All Programs>Windows Small Busines Server>Windows SBS console.
Say Yes to UAC prompt
On the page that opens click oo Connect to the internet and run the wizard
Click on "Set up your internet address" and run the wizard
Click on Configure a smart host and enter your ISP mail server.
Olaf

The problem we have is that the exchange server is not hosting there mail.  They have a internet POP
account they use so the in house exchange isn't used for much more then a shared calendar and contact system with some internal emails here and there.  The POP account they use is set as the
default account in outlook.  Yet when we try to do the "send" option from excel it wants to use the
exchange part.  Not sure there is a good solution to this since the interrnet mail is not hosted locally.

I suppose you have two accounts in outlook - Exchange and pop3. Try to set POP3 account as default.

In case you need instructions:
http://email.about.com/od/outlooktips/qt/How_to_Set_the_Default_Account_in_Outlook.htm

POP is set to the default but for some reason it keeps trying to use the exchange.  If you add the file as an attachment in outlook it will work fine but the send function in excel doesn't.

Two options:
The best way: Run exchange using the wizards and join workstations using the wizards.
Then add a POP account either locally or using the pop connector on the SBS server

or
Stop exchange server services on server use pop locally. You wwill not have functions such as backup, internal emailing.

As to excel send to issue: That's a macro. Check the macro.
Olaf

When using send-as in excel it opens a window of a new mail message. Can you show and change from: field? Right now I don't have excel to test it how it works from excel, but in normal messages from outlook if you have multiple accounts, you can choose between them.
http://ask-leo.com/how_do_i_get_the_from_button_to_show_in_outlook_2003.html
http://onlineitpro.com/?p=395

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