Unauthorized emails are being sent from my Domain name I purchased from Yahoo. How can I prevent it?

Question

I am getting hundreds of bounced emails relating to spam sent from fictitious email addresses at the domain name I purchased from Yahoo.

I did "lock" my domain...but they continue. How can I regain control of my domain name, and remove unauthorized senders, before further damage gets done?

Answer 1

Welcome to the club.  Same thing is happening to me, and there is absolutely nothing you can do.  Believe me, I've contacted Yahoo! and other security people, and you can do nothing except ignore it.  Don't open them, report them as spam.  Won't belong until the number will decrease.

Answer 2

Hi, this is Nicki from Small Business. We're sorry this is happening to you -- it sounds like someone is spoofing your domain. Here's how you can check:

1. Look at the full email headers on one of the emails. Email headers are used to deliver a message over the Internet and contain a record of the route taken by the email. A full email header is included in every message that you receive. If you're using Yahoo! to read your mail, here's how to see the full headers:

Using the original Yahoo! Mail interface:

http://help.yahoo.com/help/us/bizmail/co...

Using the new Yahoo! Mail interface:

http://help.yahoo.com/help/us/bizmail/ge...

2. After you've displayed the full headers in the email, you should see a "Received:" line in the email message that contains an 8 to 12 digit number, separated by periods. It should look something like this:  "Received: from [123.456.78.91] by . . . "

This lets you see the real IP address for the sender – and whether the email is actually coming from your domain or some spammer's site.

Look for wording like "Received: from yourdomainname.org ([104.128.23.115]) by mail.notyoursite.com (8.8.5)...", which indicates the user said it was coming from one site (i.e., your domain), when it was in fact coming from another (a spam site). If you see something like this, this means people are spoofing your domain (but your domain hasn't been hijacked).

For more details, check out this spam/headers article: http://www.stopspam.org/email/headers.ht...

3. Once you've checked the headers, here are other steps you can take:

*  Report the email to us by forwarding it to [e-mail].

*  Report the spammer to the company providing its Internet access. After you've identified the IP address, you can run a search to determine which ISP provides this person with Internet access. This site can help you determine the actual computer that uses the IP address: http://www.arin.net/whois/index.html.

* Change your password.

* If you're using Yahoo! to read your email, make sure your SpamGuard settings are turned on, which automatically deliver junk mail to your Spam or Bulk folder.

If you have free Yahoo! Mail: http://help.yahoo.com/l/us/yahoo/mail/ya...

If you have Yahoo! Business Email: http://help.yahoo.com/help/us/bizmail/co...

Again, we're sorry about this -- spammers are nothing if not diligent. If you still have any questions or concerns, please contact us anytime.

http://smallbusiness.yahoo.com/contactus...

Cheers,

Nicki

Answer 3

Is the mail actually coming from an email server that you own?  Can you determine where the emails are actually coming from?  Can you talk to techs at Yahoo?  Who is providing the DNS for the domain?  Is you do an nslookup for the domain does it return the appropriate info?  If you do a whois search does it return the appropriate info?

Answer 4

try yahoo tech support 1 800 318 0783