How do I view full headers in Yahoo! Mail?

In new mail - click on the subject to open read pane. Click on "actions" and then "full header".

In classic mail - click on the subject to open read pane. At the bottom click on "full headers".

This site will take the headers and tell you the source.

http://my-addr.com/trace_email_address/free_email_...

₪ ʎəɿʞɹɐq ₪

kam2peace is right. Go to settings, switch back to "Basic" and then you will see the actual addresses that emails came from. Once you have gleamed the information you need you can then click up top on like "Switch to New Yahoo Email" and you're back to the layout you're accustomed to. Just did it and got the web address I was looking for, and there seems to be no other way now, no way to just select to view full header, you just have to go back to basic, grab what you need, then switch back to the current Yahoo email format/view/layout after that.

I don't header info on one email, I want header in the toolbar above the emails, as it once was. Can't sort by a column header that does not exist.

Yeah the new mail is the worst ever. I can see the area for full headers but it is dim and does not work . Great job Yahoo!!!

plize header yahoo

It doesn't work for me either, with this new stupid Yahoo mail. I can't find ANY headers on ANY email.

With the "New" Yahoo Mail the option to view full headers is under the "More" section; However, you may need to disable "Conversations" in the "Settings" section to get the view full headers option.

view ip address in headers

How can I see time of an e-mail I already sent from yahoo mail ?

Once you get the email header, It only shows the IP for the mail server... not where the actual sender is.