nopCommerce No Longers Sends Emails After Installing nopIPFilter Plugin

After installing nopIPFilter Plugin our nopCommerce site no longer is able to send email through smtp (hosted by GoDaddy).  Error indicates "An attempt was made to access a socket in a way forbidden by its access permissions" with IP addresses all within the US which are allowed.  Any help would be appreciated.

>Error indicates "An attempt was made to access a socket in a way forbidden by its access permissions"

When did you see this error message? In Nop?

When nop tries to send automated emails ... in the Message Logs listing.  However I did do some troubleshooting and even if I disable the nopIPFilter plugin the issue persists, so it probably is not an issue with nopIPFilter.

Ok.
Write me about result.