[dfrussell]

Corp email from home or a Blackberry is pretty standard stuff.

And they won't work if DNS/SPF listed the valid outbound IPs for a domain.

Even a small business can set up an email server with a web front end.

Yes, but many people in mgmt do not care to use them :)

[tacticalogic]

And they won't work if DNS/SPF listed the valid outbound IPs for a domain.

I meant from the corp's own mailserver.

Yes, but many people in mgmt do not care to use them :)

I find they warm up to the idea quite nicely when it's the only way their email is going to get delivered :).