Hello,

All my outgoing emails to @hotmail, @msn, @live, @bendcable, @aol email addresses today received the sending error message shown below. These are important and time sensitive messages. Why are they being deferred and how will I know when they have been sent? 

"This message was created automatically by mail delivery system.

 THIS IS A WARNING MESSAGE ONLY.

 YOU DO NOT NEED TO RESEND YOUR MESSAGE.

Message will be retried for 4 more day(s)"

Thank you for your help,
Emily