Avatar for Username

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Weitere Informationen

Dieses Thema wurde archiviert. Bitte stellen Sie eine neue Frage, wenn Sie Hilfe benötigen.

Thunderbird can receive email but not send email

  • 1 Antwort
  • 1 hat dieses Problem
  • 8 Aufrufe
  • Letzte Antwort von sfhowes

Susan Beecher
Susan Beecher
more options

My Thunderbird email (att email) can receive emails but not send them. I get an error message that says "Login to server with [username] failed". Then "Unable to authenticate to Outgoing SMTP server. Check password and authentication method." So in order to use ATT's email with Thunderbird, I recently changed the authentication method to Oauth2. The authentication method for the outgoing server is "Normal password". The other possible settings are Encrypted password, Kerberos and NTLM. Should I be using one of those?

This worked just fine until today. I am puzzled.

My Thunderbird email (att email) can receive emails but not send them. I get an error message that says "Login to server with [username] failed". Then "Unable to authenticate to Outgoing SMTP server. Check password and authentication method." So in order to use ATT's email with Thunderbird, I recently changed the authentication method to Oauth2. The authentication method for the outgoing server is "Normal password". The other possible settings are Encrypted password, Kerberos and NTLM. Should I be using one of those? This worked just fine until today. I am puzzled.

Alle Antworten (1)

sfhowes
sfhowes
  • Top 25 Contributor
more options

Use 'normal password' authentication for incoming and outgoing, but enter a secure mail key instead of the regular account password.

https://support.mozilla.org/en-US/questions/1330602