Windows 10 bereikte EO (einde ondersteuning) op 14 oktober 2025. Als je Windows 10 gebruikt, lees dan dit artikel.

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

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how to fix error: checking mail server capabilities

Thunderbird Probleemoplossing
christ1 beantwoord
Lee S
Lee S

using windows 10 with thunderbird as the default email client. Opened computer this morning and there were no new messages (usually 20-25 overnight). Clicked on Get Mail and message at the bottom of the page was: Checking mail server capabilities. Rebooted computer, same message. Restarted Thunderbird with no add-ins active. Same error message.  ???

using windows 10 with thunderbird as the default email client. Opened computer this morning and there were no new messages (usually 20-25 overnight). Clicked on Get Mail and message at the bottom of the page was: Checking mail server capabilities. Rebooted computer, same message. Restarted Thunderbird with no add-ins active. Same error message. ???

Alle antwoorden (3)

christ1
christ1
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Talk to your email provider, they may have a problem.

Lee S
Lee S Vraageigenaar

I can access my email through webmail on my ISP's server without any problem. Can't see why Thunderbird has a problem connecting as well.

christ1
christ1
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Webmail infrastructure is independent from POP/IMAP/SMTP servers. Therefore, if webmail works, this is no indication that there are no other problems.