We have an employee directory which links to the public my sites of
each person. It works GREAT! But, I have an employee who works at a
customer site who is trying to use these links to view the various
public my sites. He is getting the following error:

WB-6 Access to the Web site is blocked by your administrator. Please
notify your system administrator. Made https request for
GET /MySite/Public.aspx?accountname=CORPORATE%5cusername HTTP/1.1 to
XXXXX.XXXXXXXXX.com:443

I suspect it has to do the with remote locations firewall, but I am not
certain. If that is the case, would the firewall still have an impact
if the employee connected via VPN? Is there anything I can do to
resolve the problem from my end?