python - Send an email via. deferred library in Google App Engine -

i'm attempting send mail using emailmessage class, which, when used normally, in:

message = mail.emailmessage()  message.sender = ... message.to = ... message.subject = ...  message.send() 

works fine; receive email expected.

however, trying add email.send() event push queue using deferred library:

def email():       message = mail.emailmessage()      message.sender = ...     message.to = ...     message.subject = ...  // elsewhere def send_email(message):     deferred.defer(message.send, _countdown=10)   app = webapp2.wsgiapplication([     ('/api/email', emailhandler) ], debug=false) 

i can see added push queue on admin interface, never receive email or kind of failure notification/bounce message.

i've seen limitations of deferred library don't think i'm running of here?

deferred.defer takes arguments function , arguments passed function. when this:

deferred.defer(message.send, _countdown=10) 

you pass function message.send data message object gets lost no longer have data!

instead move of logic send_email function:

def send_email(from, to, subject, body):       message = mail.emailmessage()      message.sender = ...     message.to = ...     message.subject = ...     message.send()  // elsewhere deferred.defer(send_email, from, to, subject, body, _countdown=10)