a) If you try it in a new Windows account?
b) If you try it in a different e-mail program (like Thunderbird)
c) On a different PC?
These simple experiments will show if it's something in your Windows account (than start using that new one), some WLM issue (then start using Thunderbird) or even something in your PC (then switch to Linux, go back to factory conditions or use another PC).
You realise that uninstalling and reinstalling WLM doesn't do anything to anythning (data in your profile, like a registry entry or something in appdata) the program created after the install?
In that case, option a) will be the solution and you can only continue using your existing account after a thorough cleaning of everything related to WLM in your current Windows account. That can be rather difficult (unknown registry entries, hidden files).
A few months ago I started having problems with Windows Live Mail. Whenever I click Send/Receive to fetch emails from my Yahoo Mail account after about 15 seconds I get an error message: "Unable to send or receive messages for the Yahoo.co (<username>) account. Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity.
Windows Live Mail Error ID: 0x800CCC0F
Secure (SSL): Yes"
I've been going over lots of different forums, trying every solution I could find. I have turned off my Norton 360 firewall, antivirus, email scanning, SONAR - every setting I could. I have uninstalled an reinstalled Windows Live Mail. I have tried fiddling with the port settings.
Interestingly if I add my account details as a second account, it will start to download all my emails no problem. I left this running overnight, deleted my original account in Windows Live Mail, and made this "new" one my main. When I press Send/Receive I get the same error message. If I add it again, it downloads again no problem. If I stop it and try and restart it - same error message.
Also of interest; I can write an email, click send, and it is sent no problem - it is only receiving emails I have issues with.
I'm now in a position where I have to add my account to download that days emails, drag them over to my main account, then delete the new one.
I'm running Windows 7 Professional 64 bit (6.1, Build 7601), and as stated, Norton 360.
I would appreciate any help anyone can give. Many thanks in advance.