The error occurs in both basic HTML and standard version of GMail :
In the basic HTML version of Gmail we get a Google page where we can read :
Server Error[[BR]]
GMail is temporary unavailable. We're working on solving this problem. Try to connect again in a few minutes.
In the standard version of Gmail, nothing happen on the page when we click on "Send" but we see a message in the log :
Javascript Alert: Impossible d'effectuer l'opération demandée (code d'erreur 007).
Réessayez dans quelques secondes. (from frame 0x264221b0)[[BR]]
Translation : "Can't perform the assigned task (error code 007). Try again in a few seconds."