in reply to Pop3client.pm win vs. linux

Maybe you can analyze the SSL problem using analyze-ssl.pl?

Most likely you will have to tell the SSL socket that it's OK to connect to the other end, ideally by allowing a known good hash if you cannot add the site certificate.

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Re^2: Pop3client.pm win vs. linux
by Anonymous Monk on Mar 31, 2017 at 18:45 UTC
    Makes sense, the windows version does throw an error but it works, that error is 
    *******************************************************************
 Using the default of SSL_verify_mode of SSL_VERIFY_NONE for client
 is deprecated! Please set SSL_verify_mode to SSL_VERIFY_PEER 
 together with SSL_ca_file|SSL_ca_path for verification.
 If you really don't want to verify the certificate and keep the
 connection open to Man-In-The-Middle attacks please set
 SSL_verify_mode explicitly to SSL_VERIFY_NONE in your application.
*******************************************************************

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