Hi Andre. Can you please post your template? Salut, Brent Friday, April 10, 2020, 6:00:08 a.m. EDT, stunnel-users-request@stunnel.org <stunnel-users-request@stunnel.org> wrote: Send stunnel-users mailing list submissions to     stunnel-users@stunnel.org To subscribe or unsubscribe via the World Wide Web, visit     https://www.stunnel.org/cgi-bin/mailman/listinfo/stunnel-users or, via email, send a message with subject or body 'help' to     stunnel-users-request@stunnel.org You can reach the person managing the list at     stunnel-users-owner@stunnel.org When replying, please edit your Subject line so it is more specific than "Re: Contents of stunnel-users digest..." Today's Topics:   1. CERT: Pre-verification error: unsupported certificate purpose       (Andr? L?onard) ---------------------------------------------------------------------- Message: 1 Date: Fri, 10 Apr 2020 09:46:29 +0200 From: Andr? L?onard <andre.leonard@celotoise.com> To: stunnel-users@stunnel.org Subject: [stunnel-users] CERT: Pre-verification error: unsupported     certificate purpose Message-ID: <1a2bba7f82b899d6e208303bc3a8ad6d@celotoise.com> Content-Type: text/plain; charset="utf-8"; Format="flowed" Hi, I upgraded stunnel from version 5.44 to 5.56. But now I'm getting the following error : CERT: Pre-verification error: unsupported certificate purpose Rejected by CERT Setting verifiy to 0 slove temporary the issue but is not secure at all. As testing pupose, I recreated new certificate with the following command but ending with the same issue: openssl req -new -x509 -days 365 -nodes -config stunnel.cnf -out stunnel.pem -keyout stunnel.pem How to fix this ? Thanks for you help, Andr?.