Add button to view detailed logs if SMTP auth fails and allow send-only accounts without requiring POP/IMAP setup

[marijusGood]

1. Add button for detailed logs if SMTP authentication fails

When SMTP authentication fails (e.g., due to incorrect credentials, server response errors, or security policies), Thunderbird displays a generic error message. This is often insufficient for diagnosing the issue.

Suggested Improvement:

• Include a "Show Log" or "View Details" button in the SMTP error dialog.

• This button would reveal detailed diagnostic information, such as:

  • Full SMTP conversation with the server (with sensitive data masked)

  • Response codes and messages

  • Auth mechanism attempted (e.g., LOGIN, PLAIN, OAUTH2)

  • Connection settings used

2. Allow configuring email accounts as "send-only" (no POP/IMAP setup)

Currently, Thunderbird requires setting up both sending (SMTP) and receiving (IMAP or POP) servers for each email account. However, many valid use cases require sending only, without retrieving messages.

Use cases include:

• Transactional/notification-only email accounts

• Accounts used solely for alerts or automated systems

• Delegated SMTP credentials where receiving is irrelevant or undesired

Suggested Improvement:

• Add a "Send-only" mode for account setup

• Let users choose "POP", "IMAP", or "None (send-only)" during account creation

• Skip inbox/folder synchronization for such accounts

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.

[Agentvirtuel]

Hello

This informations
https://wiki.mozilla.org/MailNews:Logging

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smtp - mailnews.smtp.loglevel, string, set to All, Warn, or Off

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Go to Config Editor https://support.mozilla.org/en-US/kb/config-editor
Enter a search term mailnews.smtp.loglevel and set the value All

Open Thunderbird Menu
Tools > Developer Tools > Error Console