Switched to Google Apps and now can’t get your Xerox printers to scan to email? It’s because Google’s servers require you to use SSL when sending email and the Xerox’s can’t send by SSL. To get it working, you’ve got two options (#2 is the far easier option):
2. Google actually accepts non-SSL SMTP connections on one of their servers, aspmx.l.google.com on port 25. Set the Xerox to send via that and set your username and password to a Google Apps account.