and INCLUDE directives appropriately,
or set PCRE2_CONFIG=yes to use the installed &(pcre-config)& command.
If your operating system has no
-PCRE2 support then you will need to obtain and build the current PCRE
+PCRE2 support then you will need to obtain and build the current PCRE2
from &url(https://github.com/PhilipHazel/pcre2/releases).
More information on PCRE2 is available at &url(https://www.pcre.org/).
The value of this option is expanded and indicates the source of DH parameters
to be used by Exim.
-This option is ignored for GnuTLS version 3.6.0 and later.
-The library manages parameter negotiation internally.
-
-&*Note: The Exim Maintainers strongly recommend,
-for other TLS library versions,
-using a filename with site-generated
+&*Note: The Exim Maintainers strongly recommend using a filename with site-generated
local DH parameters*&, which has been supported across all versions of Exim. The
other specific constants available are a fallback so that even when
"unconfigured", Exim can offer Perfect Forward Secrecy in older ciphersuites in TLS.