ADH is susceptible to MITM attacks, but I can't seem to turn it off.
I've tried various permutations of tls_preempt_cipherlist = yes tls_high_cipherlist (with !DH and !ADH) smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3 smtpd_tls_mandatory_ciphers = high I'm running 2.9.6 on Debian Wheezy. Any help appreciated. Thanks :)