If you have Mac Mail problem!

If you have Mac Maill problem like this: 

"We are unable to deliver the message from <sann.othuan@gmail.com>
to <globallaizo@yahoogroups.com>.

The email address used to send your message is not subscribed to this 
group. If you are a member of this group, please be aware that you may 
only send messages to this group using the email address(es) you have 
registered with Yahoo Groups."

Do the following steps: 

• Open Mail and choose Preferences from the Mail menu.
• Click Accounts in the Preferences window.
• Select (highlight) your account on the left side of the window
• Click the Account Information pane.
• From the "Outgoing Mail Server (SMTP)" pop-up menu, choose Edit SMTP Server list.
• Click on Advanced tab.
• Change the password to your Application Specific Password (same one you entered on the account information page)