from the data you have given, me, it sounds like you are using Either Outlook, or the bundled Windows Mail service.
What is happening, is that an email your program is trying to send, an email with "test" in the subject line, but is unable to because it cannot connect to the server. looking at the string, I see several problems. make sure your settings are configured a mentioned below:
- Incoming Mail (POP3) Server: plus.pop.mail.yahoo.com (Use SSL, port: 995)
- Outgoing (SMTP) Server: plus.smtp.mail.yahoo.com (Use SSL, port: 465, use authentication)
- Account Name/Login Name: your Yahoo! ID (your email address without the "@yahoo.com")
- Email Address: your Yahoo! Mail address (e.g., email@example.com)
If this doesn't resolve your problem, refer to this page for more information.
if you do not subscribe and pay in to a "Yahoo Plus" plan, this could also pose a problem, as Yahoo does not allow you to use third-party email programs with their "free" service, as they like to restrict it to webmail only. If you want a free email service that *does*
however, I strongly suggest you check out google's Gmail service
[what I use])