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Windows 11 25H2 - Outlook (old and new) fails to connect to IMAP

KeithD_EX — Mon, 20 Apr 2026 08:52:40 GMT

Hi, having just goit anew windows11 25H2 laptop I am getting an error that yteh IMPA server is dropping teh conneciton whrn I try and configure either old or new Outlook? I have checked the email settings SSl and ports on both IMAp and SMTP but the check faills at the IMPA stage. Even went into old outlook profice setup adn tried from there and it still fails 😞

Any ideas on what to try next ?

Re: Windows 11 25H2 - Outlook (old and new) fails to connect to IMAP

Leanne_T — Tue, 21 Apr 2026 10:29:31 GMT

Hi @KeithD_EX

Thanks for coming to the community.

Can you access Outlook on any other device, or do you get the same error message?

Leanne.

Re: Windows 11 25H2 - Outlook (old and new) fails to connect to IMAP

gg30340 — Tue, 21 Apr 2026 13:22:44 GMT

If you are using a VPN try turning it off.