Lack of timeout on send

[shipperizer]

Not sure it's a major issue and maybe not even a minor,
but let's say that the configuration is the following

    MAIL_SERVER: smtp.gmail.com
    MAIL_USE_TLS: False
    MAIL_USE_SSL: False
    MAIL_PORT: 666
    MAIL_USERNAME: wallaby@gmail.com
    MAIL_PASSWORD: xxxxxxxxxxxxxxxxxxxxxxxxxx 

and all the settings are basically wrong as the email is non existent and the password as well, the port is a random one.
What happens is that when I try to send a Message, the server hangs for 4m and 20s, and it's really stuck.
As you can see below, the POST logging is delayed of that amount of time (and it's basically when I create the message, POST the form, create the Message and send it)

127.0.0.1 - - [09/Jul/2015 13:04:20] "GET /register HTTP/1.1" 200 -
127.0.0.1 - - [09/Jul/2015 13:08:41] "POST /register HTTP/1.1" 500 -
127.0.0.1 - - [09/Jul/2015 13:08:42] "GET /home HTTP/1.1" 200 -
127.0.0.1 - - [09/Jul/2015 13:08:42] "GET /home HTTP/1.1" 200 -

Would it be possible to configure a timeout of e.g 20sec after which you simply return with an error?

[kblomqvist]

Workaround is to set default socket timeout

import socket
socket.setdefaulttimeout(20)

Though it would be nice to be able to set this via API, e.g.

mail.send(msg, timeout=20)

[kblomqvist]

mail.send(msg, timeout=20)

This was not possible because, e.g. socket.SMTP class takes timeout on instantiation.

[kblomqvist]

FYI. I found out that flask-emails has support for timeout.