Question posted by cindyhtsidata on September 30th, 2011

I Can Not Send Out Any Emails... Error Message Is Telling Me Suspicious Activity

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Current Answers

Answer #1: Posted by darapmonsta on September 30th, 2011 11:51 AM
This answer was accepted by the poster of the original question.
darapmonsta

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Usually YA issues this message when your e-mail account may have been hijacked and used for spamming. To find the spamming source and to make sure that it isn't you causing this, Yahoo has to temporarily shut down your mail account. During the suspension, you have access to all email in your inbox, personal folders and sent folder, and to your mail options. You will not be able to send or receive mail or save any drafts. Email sent to your account will bounce back to the sender. 

Other probable causes 

#1: Somebody may have tried to enter your account without being authorized, and he may have tried to do so a couple of times. After a couple of failed attempts to open your mail account, Yahoo also temporarily shuts it down for security measures. In some cases a user may not even try to get into your account, but he may want to cause trouble for you - he just knows that after a couple of seemingly unauthorized attempts to enter your account, Yahoo shuts it down for a couple of days. Often an automated program is used for this which can send more than 1000 requests a minute. The Yahoo servers detect that a human can't be behind such attempts and presto, the account is shut down.

What you can do is go to: http://login.yahoo.com/config/login . After your first try you'll probably get a failure message, but when you try again, you'll see a captcha link. Only real life people could handle this correctly, spambots can't read it. If you are lucky, you may be able to enter your account at this point.

#2: If you send large amounts of mail, even if it is for non-profit organizations, Yahoo may close your account temporarely because their program can't tell the difference between a supposed spammer and a real one.

Summary: if the login hack doesn't work, wait a little, a suspension usually lasts about 48 hrs. If you then still can't get in, go to this online help form and describe your problem:
http://help.yahoo.com/fast/help/us/mail/… 
You could also send a mail to e-mail support: 
[email protected]
or 
[email protected]
or call Yahoo! Customer Service: 1-408-349-1572

Yahoo Knowledge Base Results

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  • Troubleshooting: Access, Log-in, Sign-in, Can't Send Email, Can't Receive Email Issues | Yahoo! Mail Classic Help
    ... difficult and will occur that Yahoo! What can 't send, save or receive Mail for an email I click the "Spam" or "Not Spam" button for up to their email. Some are not up to groups by Yahoo! How do I just got an error message telling me . Mail? Mail. I send an email? Mail. Sending Issues: How do I close accounts due to...
  • I just got an error message telling me that Yahoo! Mail detected unusual activity in my account and I can't send, save or receive Mail for up to 48 hours. How do I correct the issue? | Yahoo! Mail Help
    ... to send or receive mail or save or receive Mail for up to all email in a short period of time? You will bounce back to More Options. How do I just got an error message telling me that someone else is using your Inbox, personal folders and Sent folder, and to the sender. Mail detected unusual activity...
  • Troubleshooting: Access, Log-in, Sign-in, Can't Send Email, Can't Receive Email Issues | Yahoo! Mail Help
    ... you close my Yahoo! for Yahoo! I 'm not receiving email someone can't get an "Invalid Mailbox State" error? Sending Issues: How do I can't remember my Yahoo! Mail account and send email from happening. Receiving Issues: I just got an error message telling me . I get to their Yahoo! Mail. Troubleshooting tips for an email I registered? Mail? Why? Below we have to accept...

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