ls -1 /var/www/mailadmin/data/email/site.ru/ | while read u; do
rsync -avz -D -e ssh /var/www/mailadmin/data/email/site.ru/$u/.maildir/* root@12.34.56.78:/var/vmail/site.ru/$u/
done
ls -1A /var/www/mailadmin/data/email/ | while read $d | while read $u; do
rsync -avz -e --progress /var/www/mailadmin/data/email/$d/$u/.maildir/ root@78.46.20.143:/var/vmail/$d/$u/
done