can't send email



I keep gettin the same error for every message I send. Please help. See below.

The connection to the server has failed. Subject '', Account:
'plus.pop.mail.yahoo.com', Server: 'plus.smtp.mail.yahoo.com', Protocol:
SMTP, Port: 25, Secure(SSL): No, Socket Error: 10060, Error Number: 0x800CCC0E
.