Does anyone know the differences between CF 4 sendmail commands and CF 5
sendmail commands? I have a piece of code, which works fine on a CF5 server
and doesn't work at all on a CF4 server. It gives me a "Message file mutex
timed out while waiting to persist message" error. The only thing on the page
is the CFMAIL command.

<cfmail to="me@myserver.com"
from="you@yourserver.com"
subject="this is a subject"
server="111.111.111.111"
>

this is a test


</cfmail>

Does it have anything to do with the version of CF, to begin with? Any help
you can offer is appreciated!