My greetings to all readers, I am sharing here an experience while sending an email using Thunderbird, I cannot send my email because of the error message pasted below.
An error occurred while sending mail. The mail server responded: Authentication required.
Please verify that you email address is correct in your Mail preferences and try again.
As I looked on the error message, it keeps me think many times, why I got this error message, since my email account is correct and I only have one email account, I already check on my settings particularly on the email account aspect, all are correct, this is the same account I used on all my works, and suddenly it fails, I hope to hear some ideas on this problem, thanks a lot in advance.