Have a smb 2003 server with exchange, sonicwall tz170 firewall. At some time last week lost connectivity to the webmail. will not show on server or remotely. tried restarting the serivces for exchange on IIS did not work. firewall rule for this server has not changed. when connecting to webmail certificate warning "There is a problem with this websites certificate" I press continue and get Internet explorer cannot display the webpage. If I leave off the /exchange on the url.....ie....https:\\mail.mycompany.com\
it gets to the sonicwall Tz170 firewall login prompt. I have recently been asked to diagnose this issue and the server is new to me. I see an old cert was issued but expired back in 2009....so I do not know if the cert prompt has anything to do with the webmail issue as all was working for months. email is working. have symatec brightmail message filter and endpoint protection installed. Please advise if anyone has a resolution.