Changed SQL server IP, now forum doesn't work

Hello Everyone, recently we switched ISP's and we changed our static IP address, I replaced the new onewith the old one in the "database_connection.asp" file, specifically in the line that goes:

strSQLServerName = "0.0.0.0,port number" 'Holds the name of the SQL Server (This is the name/location or IP address of the SQL Server)

After doing so, whenever I want to send a private message or whenever I want to post a reply to a forum I get the following error message.

"Server Error in Forum Application
An error has occured while sending an email.
Please contact the forum administrator.

Support Error Code:- err_SQLServer_send_mail_footer
File Name:- functions_send_mail.asp

Error details:-
CDO.Message.1
The transport failed to connect to the server."

The only thing I could find in the "functions_send_mail.asp" related to the error message was on the MS CDOSYS block of code where there's a line that goes:

"If LCase(strMailServer) = "localhost" OR strMailServer = "http://127.0.0.1" OR strMailServer = "127.0.0.1" Then
                intSendUsing = 1
            Else
                intSendUsing = 2
            End If"

I've tried changing the strMailServer variable to the new IP address or the actual mail server name with no success. I appreciate any help.

Went into the email setting and changed the IP address there, works like a charm...Thank you boRg for your prompt response and help!