I'm sorry about the issue. Does it affect only one email message?
Is there any error or message?
Do you have windows xp, vista, or 7, or 8, or mac computer?
Can we do a remote support session, so I can troubleshoot the issue directly on your computer together with you?
Please reply at the box below. Thank you
Thank you for replying back. Is there any error or message? What kind of attachment file is it, such as PDF file, Word document, photo, etc.?
Can you test going to the yahoo.com email website in another browser program, like Google Chrome and check to see if it works there? You can download / install Google Chrome program at the website below:
Please reply at the box below to continue troubleshooting. Thank you.