We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

ค้นหาฝ่ายสนับสนุน

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.

เรียนรู้เพิ่มเติม

หัวข้อนี้ถูกเก็บถาวรแล้ว โปรดถามคำถามใหม่หากคุณต้องการความช่วยเหลือ

SMTP server suddenly unreachable

  • 1 การตอบกลับ
  • 2 คนมีปัญหานี้
  • 7 ครั้งที่ดู
  • ตอบกลับล่าสุดโดย Matt

krage111
krage111
more options

For a few year thunderbird works fine. Since today I can't send any mail. I got the following message:

ErrorMessage: Sending of the message failed. The message could not be sent using Outgoing server (SMTP) securesmtp.t-online.de for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again..

I check the settings, all fine. I test the settings with Outlook and it works. I use Thunderbird 38.6.0 unter Windows 10 on two computers. Since today both have the same problem.

SMTP-Server: securesmpt.t-online.de; Port 465 with SSL/TLS 

receiving mails works fine.
For a few year thunderbird works fine. Since today I can't send any mail. I got the following message: ErrorMessage: Sending of the message failed. The message could not be sent using Outgoing server (SMTP) securesmtp.t-online.de for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again.. I check the settings, all fine. I test the settings with Outlook and it works. I use Thunderbird 38.6.0 unter Windows 10 on two computers. Since today both have the same problem. SMTP-Server: securesmpt.t-online.de; Port 465 with SSL/TLS receiving mails works fine.

การตอบกลับทั้งหมด (1)

Matt
Matt
  • Moderator
  • Top 10 Contributor
more options

Have you contacted your provider to see if they have an issue today?