WHEN TRYING TO SEND OUT A MASS E-MAIL ALL OF THE EMAIL ADDRESSES THAT ARE YAHOO COME BACK WITH ....554 permanent problems with the remote server a.mx.mail.yahoo.com.... THIS INITIAL MESSAGE READS... The following addresses had permanent fatal errors ----- THE MAJORITY OF OUR CUSTOMERS USE YAHOO AND WE WERE WONDERING IF THERE IS A SETTING WE COULD CHANGE TO MAKE THIS WORK PROPERLY OR IT IS SOMETHING TO CALL A SPECIALIST ABOUT? THANK YOU