Windows 10: Error message in Windows Live Mail

Since the August 2019 crash of Telus email, every time I open Window live mail ( I know it's unsupported and old but has, until now worked perfectly) I have been receiving the following error message in Window Live Mail: unable to send or receive messages for the Telus ( ) account. Server Error:0x800CC90 Server Response:-Err No such Blob: mailbox=5492, item=99073, change=483713 Server:'pop.telus.net' Windows Live Mail Error ID:0x800420CD ProtocolOP3 Port:995 Secure (SSL): No. This is after a very lengthy (takes about an hour) of an automatic "checking for new messages of Telus ( ) Downloading messages." this can reach over 60,000 messages, I've worked with both Telus and Microsoft Techs with no solutions. Any help out there? Thank you

:)

 

Windows Live Mail error message

 

Windows Live Mail error message


It also could be this:
This will only happen when you're signed in in Windows Live Mail. There are major changes taking place at Outlook.com, and you may be suffering the consequences of this. To see whether you are one of those affected,

1. When viewing your calendar, click the right-most button on the ribbon and select View account information.
2. After signing in to your Microsoft Account and the account Hello! page opens, click View inbox in the left-hand column.
3. Your Outlook.com page should open. In the top left-hand corner, you may see this:
   
   
   
   

• If you do, your account has been upgraded and your contacts and calendar will not sync any more. If you also have the same account as a mail account in Windows Live Mail, it won't sync either, because the DeltaSync protocol that these functions depend upon isn't supported by Outlook Mail.
• If you don't, you have a different problem

 

Live Mail

Hi,

I am sorry to know that you are facing issues with
Windows Live Mail.

• Do you see any error message? If yes, then please specify.
• Are you able click on other options and are those options functioning normally?

If yes, then I suggest you to remove your account and reconfigure it and check the behavior.

Please follow the steps provided below:

Remove the account.

• 
  Right click on the account name and select remove account.
  

Add account in Windows Live Mail

• Click on Accounts tab on top.
• Click on +email icon.
• Enter your new account's user name and password.
• Click on Next.
• Select server type as per your ESP (Email service provider) and if that is a
  Microsoft account, select Outlook.com/Windows Live Hotmail. And you must select
  IMAP/POP. (Only If that is a Microsoft account and if it is being migrated to the new interface
  "Outlook Mail", then I suggest you to please refer to the suggestions provided by
  ¡Firedog in the link below)Windows Live Mail and Outlook Mail
  

• Click on next.

Additional information:

http://windows.microsoft.com/en-US/windows-live/mail-add-email-account-faq

And if the issue still persist, try
repairing Windows Essentials, and check:

• 
  Type Control panel in the search bar (on Desktop) and hit
  Enter key.
  
• 
  Click on Programs and Features.
  
• 
  Select Windows Essentials
  and click on Uninstall/Change.
  
• 
  Click on Continue.
  
• 
  Click on Repair Windows Essential programs.
  

Please keep us updated with the status of Windows Live Mail, to assist you further.

Regards,