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.

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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’.

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

Since about 10 days, Thunderbird responds "Recipient address : missing authentification. Please check...". Using Thundrbrd since mny years. I've never seen that

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  • Lêste antwurd fan Onno Ekker

AL-Ollntown
AL-Ollntown
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I'm using Thunderbird since many years (more than 10). Though I changed nothing in my Thunderbird configuration, nor in my computer configuration, when I send any e-mail, Thunderbird produces an error message : " An error occurred while sending mail. The mail server responded: 5.7.1 <lal.andrian@club-internet.fr>: Recipient address rejected: Missing Authentication. 

Please check the message recipient "lalatian@club-internet.fr" and try again."

This error message appears for all recipients I have tested. So, since about 2 weeks, I am able to receive e-mail in Thunderbird, but I can't send any e-mail. Thus, I must use other mail managers in order to send my e-mails. Best regards.

I'm using Thunderbird since many years (more than 10). Though I changed nothing in my Thunderbird configuration, nor in my computer configuration, when I send any e-mail, Thunderbird produces an error message : " An error occurred while sending mail. The mail server responded: 5.7.1 <lal.andrian@club-internet.fr>: Recipient address rejected: Missing Authentication. Please check the message recipient "lalatian@club-internet.fr" and try again." This error message appears for all recipients I have tested. So, since about 2 weeks, I am able to receive e-mail in Thunderbird, but I can't send any e-mail. Thus, I must use other mail managers in order to send my e-mails. Best regards.

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Onno Ekker
Onno Ekker
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This looks like club-internet.fr (or sfr) suddenly wants you to authenticate before sending a mail. Go to Tools -> Account Settings -> SMTP Accounts (in the left pane, last item in the list) and configure it to use the same account as for receiving messages and probably use Normal password as authentication method.