problem e-mailing to Kindle

[ldbomm]

When I first started using Calibre, I set it up to e-mail newspapers, etc., to my Kindle. That worked well, but after a month or 2 it quit doing that. Now each day I get the message that the e-mail failed. This is the latest result:
Starting job: Email New York Times to dbommer@kindle.com

Sending failed...

Traceback (most recent call last):
File "site-packages\calibre\gui2\email.py", line 37, in run
File "site-packages\calibre\gui2\email.py", line 114, in sendmail
File "site-packages\calibre\utils\smtp.py", line 94, in sendmail
File "site-packages\calibre\utils\smtp.py", line 86, in sendmail_direct
IOError: Failed to send mail: SMTPServerDisconnected('Connection unexpectedly closed',)


Retrying in 1 seconds...


Sending failed...

Traceback (most recent call last):
File "site-packages\calibre\gui2\email.py", line 37, in run
File "site-packages\calibre\gui2\email.py", line 114, in sendmail
File "site-packages\calibre\utils\smtp.py", line 94, in sendmail
File "site-packages\calibre\utils\smtp.py", line 86, in sendmail_direct
IOError: Failed to send mail: error(10061, 'No connection could be made because the target machine actively refused it')

Job: "Email New York Times to dbommer@kindle.com" failed with error:
Traceback (most recent call last):
File "site-packages\calibre\gui2\threaded_jobs.py", line 83, in start_work
File "site-packages\calibre\gui2\email.py", line 92, in __call__
IOError: Failed to send mail: error(10061, 'No connection could be made because the target machine actively refused it')

Called with args: (u'C:\\Users\\Toshiba\\AppData\\Local\\Temp\\calib re_cu5mmv\\inmusrcaltmpfmt.mobi', u'New York Times - calibre.mobi', u'dbommer@kindle.com', u'E-book: New York Times', u'Attached, you will find the e-book\n\nNew York Times\n\tby calibre\n\nin the MOBI format.') {u'notifications': <Queue.Queue instance at 0x0B03FD50>, u'abort': <threading._Event object at 0x0B8A9050>, u'log': <calibre.utils.logging.GUILog object at 0x0B8A95D0>}

Anyone able to help me. I'm computer literate but far from skilled.

[kovidgoyal]

http://manual.calibre-ebook.com/faq....ails-using-app