Dear Maintainer,
The current manpage of stunnel4 only says:
sslVersion = SSL_VERSION
select version of SSL protocol
Allowed options: all, SSLv2, SSLv3, TLSv1, TLSv1.1, TLSv1.2
However, to use SSLv2 and SSLv3, -NO_SSLv2 and -NO_SSLv3 must be added to the
"options" in the configuration file. I think the manpage should metion that
with the description of the sslVersion option. I therefor suggest adding an
additional paragraph to the sslVersion section of the manpage.