Whats Going On Here???

 (MAILER-DAEMON@yahoo.com)To:you Details

Hi. This is the qmail-send program at yahoo.com.

I'm afraid I wasn't able to deliver your message to the following addresses.

This is a permanent error; I've given up. Sorry it didn't work out. failed after I sent the message.

Remote host said: 552 sorry, that message size exceeds my databytes limit (#5.3.4)