OK...I've spent enough time banging my head on this one, time to ask for directions.
So my customer just leased a new copy machine and it refuses to scan to e-mail on the first attempt. If I scan the same document 6 times in a row(back to back), it succeeds the 2,3,4,5 and 6 time. Their old Sharp copier never had this issue.
I've tried every combo of MX server, credentials, SSL or no SSL, port number, IP address vs. hostname, ext DNS servers, SAME OUTCOME. I've adjusted the Connection Time Out within the copy machine to 120 seconds, same effect.
If I hook it up to their guest network which just uses some old junky Linksys router, it works OK. They have 5 statics from the ISP so the guest network has its own, and secure network is on another, but same modem. There is a Sonicwall being used as the router for the secure network and I've let...