feedmail-ask-before-queue

feedmail-ask-before-queue is a variable defined in `feedmail.el'.
Its value is

t

Documentation:
If non-nil, feedmail will ask what you want to do with the message.
Default choices for the message action prompt will include sending it
immediately, putting it in the main queue, putting it in the draft
queue, or returning to the buffer to continue editing. Only matters if
queuing is enabled. If nil, the message is placed in the main queue
without a prompt.

You can customize this variable.