My /etc/virtual/domainowners file is empty. How do I rebuild it?

Create a script with the following contents by running:

cd /etc/virtual
vi fix_domainowners.sh

press i to go into “insert” mode, then paste the following code:

#!/bin/sh

for u in `ls /usr/local/directadmin/data/users`; do
{
   for d in `cat /usr/local/directadmin/data/users/$u/domains.list`; do
   {
     echo "$d: $u"

     for p in `cat /usr/local/directadmin/data/users/$u/domains/$d.pointers | cut -d= -f1 2>/dev/null`; do
     {
       echo "$p: $u"
     }
     done;
   }
   done;
}
done;

Press ctrl-c to exit “insert” mode, the press shift-Z twice to save and exit. Once at the prompt, type:

chmod 755 fix_domainowners.sh
./fix_domainowners.sh > domainowners
chmod 644 domainowners
chown mail:mail domainowners