Good morning I have been using Thunderbird for a long time, but since 3 days again I can´t send any emails. I keep getting the same mistake: "Sending of the message failed. An error occurred while sending mail. The mail server responded: Rejected for policy reason. Please check the message and try again." I have checked several times, & try to downgrade the version, but it is not working. Please provide a solution, as I will be force to stop using your program anymore. Awaiting your comments. Best Regards Vicente Fresno