This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

I'm getting this mesage: "Sending of the message failed. The message could not be sent using Outgoing server (SMTP) XXX.XX for an unknown reason. "

  • 3 การตอบกลับ
  • 1 คนมีปัญหานี้
  • 1 ครั้งที่ดู
  • ตอบกลับล่าสุดโดย santi123456

more options

This happened after update to version 38.2.0 in Ubuntu14.04. I can get mails but I cannot send them. The error message suggest to "Verify that your Outgoing server (SMTP) settings are correct and try again". I did it and I could not find anything wrong. The Thunderbird error console says: Error: An error occurred during a connection to xxx.xx.xx:25. SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long). Thanks!

This happened after update to version 38.2.0 in Ubuntu14.04. I can get mails but I cannot send them. The error message suggest to "Verify that your Outgoing server (SMTP) settings are correct and try again". I did it and I could not find anything wrong. The Thunderbird error console says: Error: An error occurred during a connection to xxx.xx.xx:25. SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long). Thanks!

การตอบกลับทั้งหมด (3)

more options

So your server is using SSL certificates with what sort and size encryption?

I think your caught up in the fix for logJam. But instead of the shorter ciphers being the issue your server is responding with only ciphers that are huge. The standard is now 2048 up from 512. following the LogJam fix.

Perhaps this will assist if your the server administrator https://weakdh.org/sysadmin.html

more options

Thanks Mat! I'm not the mail administrator, so I moved your answer to him. I'll be back to the list as soon as I get an answer. The only thing I now about the server is that it is an Exchange 2003.

more options

Hi! the certificate signature algorithm is: PKCS #1 SHA-1 With RSA Encryption; and the size is 2048 bits