Why is it that I can receive email, but I can't compose any email?

I've tried emailing someone and I keep getting it back from Mailer- Daemon saying that the message couldn't be sent.

Why is it that I can receive email, but I can't compose any email?
Your Send Mail Server is Offline now.





Yahoo servers are updating the NEW Mail that replaces Beta Mail. Expect lag or


outages. I doubt if some or all Yahoo Mail functions work at all.


Wait up to 30 days when all updates are complete. Yahoo Mail is not just one server.


Each Server gets all updates by sometimes taking it off the air. ( Have you ever put an


operating system on a PC? Sort off like that but bigger.)


Then having to transfer each an every file back to all accounts.