Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Pomoc pśepytaś

Glědajśo se wobšudy pomocy. Njenapominajomy was nigda, telefonowy numer zawołaś, SMS pósłaś abo wósobinske informacije pśeraźiś. Pšosym dajśo suspektnu aktiwitu z pomocu nastajenja „Znjewužywanje k wěsći daś“ k wěsći.

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Toś ta nitka jo se archiwěrowała. Pšosym stajśo nowe pšašanje, joli trjebaśo pomoc.
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Authentication Failed, must login..

user01229325 wótegronjony
orlandot

I am unable to send emails. I keep receiving this failed message " 5.7.1 [R8] Authentication Failed, must login.." I contacted my cable provider and they are at a loss. I have tried everything but with no luck. My operating system is Microsoft 10. Hope you can help.

I am unable to send emails. I keep receiving this failed message " 5.7.1 [R8] Authentication Failed, must login.." I contacted my cable provider and they are at a loss. I have tried everything but with no luck. My operating system is Microsoft 10. Hope you can help.

Wšykne wótegrona (1)

Post your Thunderbird troubleshooting info. From the Help Menu select Troubleshooting Information. Copy to Clipboard Come back here and paste into a reply window