Our email works fine, we can send and receive from this office with Exchange (5.5). However, when I try to check mail from home, or when our other two offices try, they get a “not found” error. This started this past weekend, after a power outage. Here’s our setup…
SBS 4.5 (NT 4 and Exchange 5.5). This connects to another server running NT 4 and Proxy, which in turn connects to a SonicWall Soho2 firewall, which is connected to the DSL bridge. The firewall is set to send POP3 and SMTP requests to the proxy server, which passes them on to Exchange. Worked fine until this weekend. We can access the internet, and send and receive email with no problem, just can’t seem to connect to the mail server from outside. Any ideas?
