InformatiQ

AFAIK the sane way of adding non VirtualHost specific config to apache is to include it in the conf.d directory, since there is an Include in the apache2.conf to for all files under conf.d

I was in this position where my host has access to access to host A and host B but host A cannot access host B

This is a simple way to test if your server is able to do STARTTLS or not

openssl s_client -starttls smtp -crlf -connect your.mail.server:25