On Wed, Dec 01, 2021 at 03:54:15PM +0000, Jeremy Harris wrote: > On 29/11/2021 15:10, Matt Caswell wrote: > > SSL_CTX_set0_tmp_dh_pkey() > > "Deprecated since OpenSSL 3.0" > > Is there a non-deprecated interface? I've reworked the DH support in Postfix for OpenSSL 3.x compatibility, without use of any deprecated interfaces. I now prefer/recommend the use "auto" DH parameter selection: https://github.com/vdukhovni/postfix/blob/master/postfix/src/tls/tls_dh.c#L140-L230 -- Viktor.