Error Message ID 0x800CCC78, Server error 421

24. August 2013 · Write a comment · Categories: livemail · Tags: , , ,
Hi,

My company has recently purchased Office365 exchange services. We have configured IMAP settings to our Windows Live Mail Version 2012 (Build 16.4.3508.0205). Everything was working fine until a few days ago, where 2 of the accounts suddenly couldn't send out emails any more but able to receive emails.

As below are the error message (I have removed email address due to privacy issue):

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 ***'.

Subject 'Re: PIs'
Server Error: 421
Server Response: 421 4.3.2 Service not available
Server: 'smtp.office365.com'
Windows Live Mail Error ID: 0x800CCC78
Protocol: SMTP
Port: 587
Secure(SSL): Yes 

I have done some research online, and I'm very sure that I have done the settings correctly. The "My server requires authentication" box is checked as well. As mentioned above, everything is working fine until few days ago where it suddenly fails to receive emails. I've checked with Office365 team on the user account status, it is working on Webapp Outlook and Exchange mode in Microsoft Outlook so there's nothing wrong with the exchange server.

I'm running out of ideas and hopefully anyone here can lend a helping hand.

Many thanks.

i get a error message ID Ox80070057 when i am trying to email a picture to a friend…..I need HELP

17. July 2013 · Write a comment · Categories: Hotmail, Outlook.com · Tags: , ,
i have my pictures saved in my pictures on my pc....when i go to send a picture i have to go through hotmail.....i do this and have sent many many pictures before  but with this one i am getting this error message and not i cant send any .........please help