Sendmail transport fails with AttributeError: 'Message' object has no attribute 'sendmail_f'

[pbrackin]

See traceback below. I was able to get it to work using hasattr to gate that if statement. try/except could also be used. Maybe a better solution elsewhere tho. Could not find any other refs to sendmail_f. I presume y'all were thinking of the "envelop sender" option? Let me know if u want a PR with my patch...

Shutting down transport due to unhandled exception.
Traceback (most recent call last):
File "/usr/local/lib/python3.4/dist-packages/marrow/mailer/manager/futures.py", line 28, in worker
result = transport.deliver(message)
File "/usr/local/lib/python3.4/dist-packages/marrow/mailer/transport/sendmail.py", line 29, in deliver
if message.sendmail_f:
AttributeError: 'Message' object has no attribute 'sendmail_f'

[micksp]

hi @pbrackin did you fix this issue?
File "......site-packages/marrow/mailer/transport/sendmail.py", line 29, in deliver if message.sendmail_f: AttributeError: 'Message' object has no attribute 'sendmail_f'