Dear friends ,

Kindly show me the solution for this Error .

<arc_bvn at yahoo dot com>:
User and password not set, continuing without authentication.
<arc_bvn at yahoo dot com> 98.137.54.238 failed after I sent the message.
Remote host said: 554 delivery error: dd This user doesn't have a yahoo dot com
account (arc_bvn at yahoo dot com) [-5] - mta1088.mail.sp2.yahoo dot com

This ID is working so how can have this error , or what is the solution of this Error ?

Thanks & Regards

Kindly show me the solution for this Error .

Send it to the right account.

I think the e-mail address your sending isn't active or you type a wrong address that's why you got that error message.