My Windows Live Mail has been working fine up until yesterday. Now I am getting this message when I try to send mail out:

The message could not be sent because the server rejected the sender's email address. The sender's email address was '*** Email address is removed for privacy ***'.

Server Error: 530
Server Response: 530 Authentication is required before sending [R0107005]
Server: 'SMTP-server.twcny.rr.com'
Windows Live Mail Error ID: 0x800CCC78
Protocol: SMTP
Port: 587
Secure(SSL): No

My settings have not changed since I started using Windows Live Mail 2 years ago. I checked for updates, and can not figure this out. Can anyone help?

Thank you!!

om *** Email address is removed for privacy ***

An unknown error has occurred.

Subject 'One Evil Human'
Server Error: 550
Server Response: 550 5.2.0 0lwo1k00V5UrxxX05lwpJg Message identified as SPAM - Please visit http://www.charter.com/postmaster E5110
Server: 'smtp.charter.net'
Windows Live Mail Error ID: 0x800CCC69
Protocol: SMTP
Port: 25
Secure(SSL): No

Using Windows Live mail I am unable to send or forward emails of only a modest size . I can however receive such mails

Alao I receive the following message "

. Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity.

Server: 'mail.btinternet.com'

Windows Live Mail Error ID: 0x800CCC0F

Protocol: POP3

Port: 110

Secure(SSL): No

 

This problem has arisen since changing my ISP and email address.

Hello;
 
1) Suddenly I haven’t been able since this morning to send any emails (Windows Live Mail / Win 7 Pro SP1 64-bit).
I continue however to receive emails, but not sending!
The error message (Item 5 below) provides a Server Error # and WLM Error ID.
 
2) I Contacted the ISP.
They checked the a/c, protocol, Incoming/Outgoing addresses, etc., and couldn’t figure out the problem.
The ISP advised: “Contact MS. They should be able to fix the problem.”
 
3) Contacted MS Customer Service.
They don’t provide technical support for Windows Live Mail because according to MS: “It’s a free MS product”.
MS advised however: “For $ 100.+tax, we can access your computer and provide detail diagnoses of the problem.”
I thanked MS for their offer!!
 
4) I repaired Windows Essentials, ran a full system scan, etc., and tried again to send a one-word email to myself (Subject: Testing).
No improvement. Same error message (Item 5 below)!
 
5) I uninstalled WLM, and re-installed the full Windows Essentials 2012 (incl. WLM 2012).
Tried to send email to myself.
Got the same Error:
 
An unknown error has occurred.
Subject 'Testing'
Server Error: 554
Server Response: 554 Transaction failed : Cannot send message due to possible abuse; please visit http://postmaster.yahoo.com/abuse_smtp.html for more information
Server: 'smtp.broadband.rogers.com'
Windows Live Mail Error ID: 0x800CCC6F
Protocol: SMTP
Port: 587
Secure(SSL): No
 
Your help and advice would be greatly acknowledged and appreciated.
Monir
Hi There,  Very suddenly my Windows Live Mail Client will not send email from one of three accounts.  I receive the error message below; I have X'd out the subject.  Gotta love those unknown errors :-) Any help is appreciated, Roxcee
 "An unknown error has occurred.

Subject 'XXXXXXXXXXXXX
Server: 'smtp.gmail.com'
Windows Live Mail Error ID: 0x800CCC0B
Protocol: SMTP
Port: 465
Secure(SSL): Yes
I am getting the following error messages. I am able receive messages but cannot send. 

The connection to the server has failed.

Subject 'test'
Server: 'mail.i9sports.com'
Windows Live Mail Error ID: 0x800CCC0E
Protocol: SMTP
Port: 25
Secure(SSL): Yes
Socket Error: 10060

Unable to send or receive messages for the I9sports (angela.vetrano) account. Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity.

Server: 'mail.i9sports.com'
Windows Live Mail Error ID: 0x800CCC0F
Protocol: POP3
Port: 110
Secure(SSL): Yes

Thanks for the help


The host 'smtp.live.com ' could not be found. Please verify that you have entered the server name correctly.

Subject 'test mail from links@dc'
Server: 'smtp.live.com '
Windows Live Mail Error ID: 0x800CCC0D
Protocol: SMTP
Port: 587
Secure(SSL): Yes
Socket Error: 11001


I've also tried changing the port to 25, but I still get the same error.

Unable to send or receive messages for the Hotmail.co (mmayr) account.

Server Error: 4102
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x8DE00001

 

Please advise as to how to resolve,  I can see mails via www.hotmail.com, but not via windows live