lonney:insane: hello good people, just to let you know that an ISPs mail platforms are not the same as your companies exchange server sitting in the corner of the office behind a mail-marshal box. There are Mail host(s) aka the smtp and pop3 /IMAP servers that you have visability over, mail routers and dependant on design other anti-virus and anti-spam systems in place so the platform is rather complex really.
If your company has its servers in the corner of your office, then you got some issues there. And just because its ISP email is not an excuse for a crap service.
If you dont like the level of service from xnet, then you need to spend more money on an ISP that meets your expectations.
Yes you could change ISP, however that is a major inconvience. It is also costly if you have to pay a disconnection fee, and then a churn fee to change to the new ISP. It also shouldn't be required if the ISP is doing what they are being paid for.