Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Шукати в статтях підтримки

Остерігайтеся нападів зловмисників. Mozilla ніколи не просить вас зателефонувати, надіслати номер телефону у повідомленні або поділитися з кимось особистими даними. Будь ласка, повідомте про підозрілі дії за допомогою меню “Повідомити про зловживання”

Докладніше
Ця тема перенесена в архів. Якщо вам потрібна допомога, запитайте.
Архівовано

Cannot Send E-Mail through Mozilla Thunderbird

Thunderbird Надсилання та отримання електронної пошти
Matt replied
grod75
grod75

Hello,

I've used Thunderbird for my e-mail for approximately 15 years, and now I can't currently send e-mail. I've gone through all the troubleshooting steps and also had Geek Squad attempt to fix it, but I'm still unable to send e-mail (I can receive them).

I've changed my password multiple times, reinstalled a fresh copy of Thunderbird on my Windows 11 laptop, restored the default settings for the outgoing server to align with what Verizon has specified, and nothing resolves the problem.

I keep getting the message: " Sending of the message failed. An error occurred while sending mail. The mail server responded: Email rejected. Please verify that your email address is correct in your account settings and try again."

Please let me know what the next step is so that I can use Thunderbird to send and receive my e-mails, like I have in the past.

Hello, I've used Thunderbird for my e-mail for approximately 15 years, and now I can't currently send e-mail. I've gone through all the troubleshooting steps and also had Geek Squad attempt to fix it, but I'm still unable to send e-mail (I can receive them). I've changed my password multiple times, reinstalled a fresh copy of Thunderbird on my Windows 11 laptop, restored the default settings for the outgoing server to align with what Verizon has specified, and nothing resolves the problem. I keep getting the message: " Sending of the message failed. An error occurred while sending mail. The mail server responded: Email rejected. Please verify that your email address is correct in your account settings and try again." Please let me know what the next step is so that I can use Thunderbird to send and receive my e-mails, like I have in the past.

Усі відповіді (1)

Matt
Matt
  • Top 25 Contributor

What is the email domain of your address, the part after the @). My understanding is the new "thing" with US ISP's is to start dropping some of their legacy domains that they acquired in earlier decades. But I just do not recall if it was Verizon or Comcast I heard this about. It might even have been ATT. They all start to sound the same after a time. Poor support and exprensive products that deliver the absolute minimum folk will pay for.