Options +FollowSymlinks
RewriteEngine on
ReWriteCond %{HTTP_HOST} ^(www.)?eskisomain.com$ [NC]
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/\.well-known/pki-validation/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
ReWriteRule ^(.*)$ http://www.yenidomain.com/$1 [R=301,L]