OT: I am unable to send emails.

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

Subject 'Skype'
Server Error: 552
Server Response: 552 Message Size exceeded: 41703560 > 41697280
Server: 'smtp.tools.sky.com'
Windows Live Mail Error ID: 0x800CCC0F
Protocol: SMTP
Port: 465
Secure(SSL): Yes