Windows 7: Unable to send emails using Windows Live Mail

I am using Windows 7 Home Premium 64-bit OS and have set up my Hotmail, Gmail and ISP mail accounts in WLM. I am receiving emails ok but am unable to send any. Any advice would be much appreciated.
This is the error message I am receiving:

An unknown error has occurred.

Subject 'test'
Server: 'smtp.gmail.com'
Windows Live Mail Error ID: 0x800CCC0B
Protocol: SMTP
Port: 465
Secure(SSL): Yes



Also does it matter which account I set as the default account?
Many thanks

I just sent a test email from my hotmail.com account via WLM to my bellsouth.net e-ddress...no problem.

When I added my account, I typed my Hotmail e-ddress, password, and clicked "Make this my default email account, bu not "Manually config...." The server used is https://mail.services.live.com/Delta....0.0/sync.aspx

Thank you for that. I think maybe I will delete the accounts and start again. I'm not sure what you mean by the server you mentioned.

Here's a pic.:



The server was automatically set up.

Hi Larry6, the first thing you should do is access your Gmail settings and enable POP. Personally I don't use IMAP but if you need it to access your Gmail with other apps enable it also.
I sign-in to WLM with my Hotmail account (where my contacts are saved) wait till all folders are loaded then add my Gmail account. I then delete the Hotmail account.

Thanks Roderunner but just abother question. Why do you delete your hotmail account? Sorry if this is a dumb question?

Hi Larry,
My Hotmail account is only used to sign-in to WLM where my contacts are saved, it also gives me Safe/Blocked sender filtering. Its only used for Mickey Mouse type of websites i.e. comparison sites. Gmail is more secure. I don't have to input addresses manually when sending mail.

OK there must be something I'm missing here. I deleted all the accounts and decided to start again. I have added the hotmail account, it is not synchronizing ( waited over half an hour and nothing happened.), so then I tried receiving/sending messages and got the following error message:

Unable to send or receive messages for the Hotmail (youngr55) account.

Server Error: 0x80048849
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x80048849

What am I doing wrong, please?
TIA

Now I have added 2 more accounts and am receiving emails from them but still unable to send.

The connection to the server has failed.

Subject 'test 25/4'
Server: 'mail.cherishedbooks.com.au'
Windows Live Mail Error ID: 0x800CCC0E
Protocol: SMTP
Port: 25
Secure(SSL): No
Socket Error: 10060

Hi Larry,
Your Hotmail account, if it has your correct name & password, will connect automatically.
Your ISP server looks wrong, try mail.cherishedbooks.au
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This is how your ISP & Gmail advanced tab should look like.