If you experience sudden connection problems (error code 401 or 1401) in PopMan running on Windows 7 or Windows XP, the reason is probably that your e-mail provider requires a secure connection using protocol TLS 1.2 or higher.
PopMan uses the encryption libraries of the Windows operating system. Windows 7 and older Windows versions by default do not support TLS 1.2. Therefore, PopMan is unable to establish a TLS 1.2 secured connection to your e-mail provider.
To fix this, you can enable support for TLS 1.2, e.g.:
https://manage.accuwebhosting.com/knowl ... ows-7.html
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