ServerName mail ServerAlias mail.* ServerAlias ns1.* ServerAlias ns2.* ServerAlias ftp.* RewriteEngine On RewriteCond %{HTTP_HOST} ^(?:www\.)?(?:ftp|mail|ns1|ns2)\.(.*)$ [NC] RewriteRule ^(.*) http://%1$1 [L,R] ServerName mail ServerAlias mail.* ServerAlias ns1.* ServerAlias ns2.* ServerAlias ftp.* RewriteEngine On RewriteCond %{HTTP_HOST} ^(?:www\.)?(?:ftp|mail|ns1|ns2)\.(.*)$ [NC] RewriteRule ^(.*) https://%1$1 [L,R]