allow_localhost
hosts = 127.0.0.1
port = PORT_D
+ hosts_try_fastopen = :
tls_certificate = DIR/aux-fixed/exim-ca/example.com/server2.example.com/server2.example.com.pem
tls_privatekey = DIR/aux-fixed/exim-ca/example.com/server2.example.com/server2.example.com.unlocked.key