gmail and business domain, but mostly gmail now. The reason is to prevent DDOS attacks. If you have a DDOS attack on a provider that can't handle it they'll tur

gmail and business domain, but mostly gmail now. The reason is to prevent DDOS attacks. If you have a DDOS attack on a provider that can't handle it they'll turn off your email, which is unpleasant. I figure Google can handle it. Even though google apps serves the business domain I'm not sure what their response would be to a sustained DDOS attack.