Cannot send email from Yahoo - Yahoo Mail

Try having yahoo send you a verification code to your mobile phone if you added one when you signed up for your email. Hotmail is a little slow at getting email sometimes. If you have to, create a new email on yahoo, add your mobile phone number to it and then email yahoo to send you a verification code to that email address. Explain to them your problem about not being able to sign in to your old email address. Hopefully you can get the issue resolved if you haven't already. Best of luck.

Please check if the emails you send are located on Sent or Draft folder, if they're at Draft folder it means they're saved to send later, if they're at send folder maybe your account at Yahoo email server has some trouble and it should be reported to Yahoo.

to remove
Yahoo mail pops up CAPTCHA when sending just clear all spam mail from inbox
and send mail to any yahoo id 4 timesy our issue will be fixed

thanks
Buddhi Ram Sharma

Delhi University

Do a yahoo or google search on yahoo contac for India

check ur browser status and clear cookies and cache...

give me my lost password in friendster

it is probably a yahoo issue, this happens to me occasionally when sending emails to yahoo recipients.

Call for expert assistance +1(518) 348-9393

Also, it looks like Yahoo are now checking the verification of your account before you can use the SMTP service.
You need to do this..
http://help.yahoo.com/l/us/yahoo/mail/original/manage/sendfrom-07.html

Try sending to fewer recipients at a time. I've used Yahoo for nearly 15 years and have never seen that error.