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.

Search Support

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.

Learn More

Can't send email

  • 1 reply
  • 1 has this problem
  • 4 views
  • Last reply by ekentner2

more options

With the recent update of Thunderbird to 91.2.0, I can no longer send emails.

I do not have saved passwords in Thunderbird. For all past versions of Thunderbird, I would be prompted for a password on send the first time I sent a message after opening the application.

I am now never prompted for a password and I get the following error message after canceling out of the never-ending "sending" notification: "Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) mail.xxxxxx.com. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'"

I have tried all of the steps in the Thunderbird online help on this topic, and have checked with my email provider, who states that they have made no changes on their end. I suspect that this is a bug in Thunderbird 91.2.0, where a password is never requested on send.

With the recent update of Thunderbird to 91.2.0, I can no longer send emails. I do not have saved passwords in Thunderbird. For all past versions of Thunderbird, I would be prompted for a password on send the first time I sent a message after opening the application. I am now never prompted for a password and I get the following error message after canceling out of the never-ending "sending" notification: "Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) mail.xxxxxx.com. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'" I have tried all of the steps in the Thunderbird online help on this topic, and have checked with my email provider, who states that they have made no changes on their end. I suspect that this is a bug in Thunderbird 91.2.0, where a password is never requested on send.

All Replies (1)

more options

Here are the errors generated on send. Any help will be much appreciated.

19:37:30.015 GEThttp://self-hosted/ 19:38:00.977 URIError: malformed URI sequence LoginManagerAuthPrompter.jsm:532:16

   promptPassword resource://gre/modules/LoginManagerAuthPrompter.jsm:532
   getPasswordWithUI resource:///modules/SmtpServer.jsm:212
   getPassword resource:///modules/MailAuthenticator.jsm:244
   _authenticateUser resource:///modules/SmtpClient.jsm:686
   _actionEHLO resource:///modules/SmtpClient.jsm:963
   _onCommand resource:///modules/SmtpClient.jsm:525
   _parse resource:///modules/SmtpClient.jsm:382
   _onData resource:///modules/SmtpClient.jsm:430
   _onData self-hosted:1175

19:38:00.977 NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS: [JavaScript Error: "malformed URI sequence" {file: "resource://gre/modules/LoginManagerAuthPrompter.jsm" line: 532}]'[JavaScript Error: "malformed URI sequence" {file: "resource://gre/modules/LoginManagerAuthPrompter.jsm" line: 532}]' when calling method: [nsIAuthPrompt::promptPassword] SmtpServer.jsm:212

   getPasswordWithUI resource:///modules/SmtpServer.jsm:212
   getPassword resource:///modules/MailAuthenticator.jsm:244
   _authenticateUser resource:///modules/SmtpClient.jsm:686
   _actionEHLO resource:///modules/SmtpClient.jsm:963
   _onCommand resource:///modules/SmtpClient.jsm:525
   _parse resource:///modules/SmtpClient.jsm:382
   _onData resource:///modules/SmtpClient.jsm:430
   _onData self-hosted:1175

19:38:00.985 NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS: [JavaScript Error: "malformed URI sequence" {file: "resource://gre/modules/LoginManagerAuthPrompter.jsm" line: 532}]'[JavaScript Error: "malformed URI sequence" {file: "resource://gre/modules/LoginManagerAuthPrompter.jsm" line: 532}]' when calling method: [nsIAuthPrompt::promptPassword] SmtpServer.jsm:212 19:38:01.524 mailnews.smtp: Authentication failed: Socket closed. SmtpClient.jsm:751:17

   _onAuthFailed resource:///modules/SmtpClient.jsm:751
   _onClose resource:///modules/SmtpClient.jsm:507