I have Windows Live2009 and I have not been able to send out emails for a few weeks. Everything was working fine until then. I contact my internet provider Comcast and spent a great deal of time with them on the phone and they suggested the error was with the software and to contact you. Below is the message I received today when trying to send a test email:

The message could not be sent because the server rejected the sender's e-mail address. The sender's e-mail address was 'mo**********@comcast.net'.

Subject 'test'
Server Error: 550
Server Response: 550 5.1.0 Authentication required
Server: 'smtp.comcast.net'
Windows Live Mail Error ID: 0x800CCC78
Protocol: SMTP
Port: 587
Secure(SSL): Yes


Original title: Cannot send email out using Windows live email

24. May 2014 · Write a comment · Categories: Uncategorized · Tags: ,
I can receive mail but have difficulty sending mail and receive the error code ID 0x800C006C I am using windows 8.1 What can be done, this just started today
Sent an e-mail to a wrong address more than a week ago, but error box shows every time I open e-mail.  Seems like it's going to be there forever.  How do I dispense with it?
Windows Live Mail Error ID: 0x800CCC0D and Socket error 10060


Server: ‘smtp.att.yahoo.com’

Live Mail Error ID: 0x800CCC0E

Protocol: SMTP

Port:  25

Secure (SSL): No

Socket Error:  10060


When I send a message, the message goes to the 'Outbox' but then I get the above error message and the message just sits in the Outbox and will go no further.  This has been happening for a couple of weeks but was working fine before then.  No known changes in the program or system.


I use Windows 7 Premium.


Would appreciate any help possible.

I receive the following error report when using Windows Live Mail:
Server Error 250
Error ID 0x800CCC 7D
Protocol SMTP
Port 25
 
<Windows 7>