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

Avatar for Username

Cari Bantuan

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Pelajari Lebih Lanjut

Utas ini sudah ditutup dan diarsipkan. Silakan membuat pertanyaan baru jika Anda membutuhkan bantuan.

Sending of message failed an error occurred while sending mail

  • 2 balas
  • 4 memiliki masalah ini
  • 248 kunjungan
  • Balasan terakhir oleh Wayne Mery
  • Dikunci

robinsmj
robinsmj

Trying to send mail. Getting a message Sending of message failed An error occurred while sending mail. Relaying denied you must check for new mail before sending

Trying to send mail. Getting a message Sending of message failed An error occurred while sending mail. Relaying denied you must check for new mail before sending

Semua Balasan (2)

DavidGG
DavidGG

Looks like your outgoing (SMTP) server uses a form of authentication known as "POP before SMTP", where the mail client (Thunderbird) has to authenticate with the incoming (POP) server first in order to be able to use the SMTP server. The POP authentication remains valid for a few minutes.

You may be able to solve the problem by checking for new mail more frequently (e.g. every 5 mins, maybe 10), or manually checking for mail right before sending.

Wayne Mery
Wayne Mery
  • Moderator
  • Top 10 Contributor

Please use https://support.mozilla.org/en-US/questions/1517369