diff -Nur qpsmtpd-0.84/plugins/tls qpsmtpd-0.84_bz9162/plugins/tls
--- qpsmtpd-0.84/plugins/tls	2016-01-06 11:53:17.942804853 +0100
+++ qpsmtpd-0.84_bz9162/plugins/tls	2016-01-06 11:54:04.411819507 +0100
@@ -84,7 +84,7 @@
         SSL_key_file => $self->tls_key,
         SSL_ca_file => $self->tls_ca,
         SSL_cipher_list => $self->tls_ciphers,
-        SSL_version => 'SSLv23:!SSLv2:!SSLv3',
+        SSL_version => 'SSLv23:!SSLv2:!SSLv3:!TLSv1',
         SSL_server => 1
     ) or die "Could not create SSL context: $!";
     # now extract the password...
@@ -203,7 +203,7 @@
             SSL_key_file => $self->tls_key,
             SSL_ca_file => $self->tls_ca,
             SSL_cipher_list => $self->tls_ciphers,
-            SSL_version => 'SSLv23:!SSLv2:!SSLv3',
+            SSL_version => 'SSLv23:!SSLv2:!SSLv3:!TLSv1',
             SSL_server => 1,
             SSL_reuse_ctx => $self->ssl_context,
         ) or die "Could not create SSL socket: $!";