Om de ûnderfining foar jo te ferbetterjen is tydlik de funksjonaliteit dan dizze website troch ûnderhâldswurk beheind. Wannear in artikel jo probleem net oplost en jo in fraach stelle wolle, kin ús stipemienskip jo helpe yn @FirefoxSupport op Twitter en /r/firefox op Reddit.

Avatar for Username

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Mear ynfo

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

Cannot send e-mail from Thunderbird

  • 6 antwurd
  • 3 hawwe dit probleem
  • 1 werjefte
  • Lêste antwurd fan andyschiltz

andyschiltz
andyschiltz
more options

When I try to send e-mails from Thunderbird through my Yahoo mail account, I get the following error message: "An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please check the message and try again."

I have updated the POP and SMTP passwords, deleted them from Thunderbird and re-entered them with no solution.

I can receive e-mails from my Yahoo account, just cannot send. I can send and receive e-mails from my Yahoo web account using Firefox or Chrome.

SMTP account settings: Description: Yahoo! Mail Server name: smtp.mail.yahoo.com Port: 465 User Name: the same one I use to log into Yahoo! Mail web Authentication Method: Normal password Connection Security: SSL/TLS

Thanks, Andy

When I try to send e-mails from Thunderbird through my Yahoo mail account, I get the following error message: "An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please check the message and try again." I have updated the POP and SMTP passwords, deleted them from Thunderbird and re-entered them with no solution. I can receive e-mails from my Yahoo account, just cannot send. I can send and receive e-mails from my Yahoo web account using Firefox or Chrome. SMTP account settings: Description: Yahoo! Mail Server name: smtp.mail.yahoo.com Port: 465 User Name: the same one I use to log into Yahoo! Mail web Authentication Method: Normal password Connection Security: SSL/TLS Thanks, Andy

Keazen oplossing

Are you using a different reply-to address then you are sending with? I have the same problem as you when my reply is set to my domain name email address that is unable to send messages. If I change the reply-to adress to be the same @sbcglobal.net address as I use to actually send, it will work and not give the "mailbox unavailable" error....

Dit antwurd yn kontekst lêze 👍 4

Alle antwurden (6)

christ1
christ1
  • Top 25 Contributor
more options
Authentication Method: Normal password

Change that to 'OAuth2'.

andyschiltz
andyschiltz Fraacheigener
more options

Unfortunately, problem not solved.

Changed Authentication Method to OAuth2 and tried to send an e-mail. Yahoo requested my log-in and password, which were accepted, but I still received the same "Mailbox unavailable" error message when it Thunderbird tried to send the e-mail.

Restarted Thunderbird a couple of times, no change. Rebooted computer once, no change.

christ1
christ1
  • Top 25 Contributor
more options

Did you make the change for the outgoing server?

You may also need to allow cookies for https://login.yahoo.com in Thunderbird.

andyschiltz
andyschiltz Fraacheigener
more options

I made the change for the SMTP server, not for the POP server as OAuth2 is not a menu option for the POP server settings. See attached screen shots.

The yahoo.com domain is whitelisted in Thunderbird cookies, at Tools/Options/Privacy/Web Content/Show Cookies... . See the attached screen shots.

Thanks.

absolute.eng
absolute.eng
more options

Keazen oplossing

Are you using a different reply-to address then you are sending with? I have the same problem as you when my reply is set to my domain name email address that is unable to send messages. If I change the reply-to adress to be the same @sbcglobal.net address as I use to actually send, it will work and not give the "mailbox unavailable" error....

andyschiltz
andyschiltz Fraacheigener
more options

Yep, that did it! Thank you very much!

Is this a recent change to Yahoo? Having them different worked for me up until about a week ago.