[solved] Emails don't go out to MX records, only internally

[RouterRat]

Manage Users > mydomain.com > Edit Domain >
Mail accounts limit
(-1 disabled, 0 unlimited)
I've changed this section to -1 , after deleting all of the emails from the domain.


/etc/ispcp/postfix/working/domains
/etc/postfix/ispcp/domains

mydomain.com vdmn_entry, I found these and put # at the beginning.
Like this;
#mydomain.com vdmn_entry

Then ran postmap /etc/postfix/ispcp/domains .. It took it, didn't see any response from CLI.

When I do "ifconfig" , my first two name servers are from my ISP and 3rd one is 8.8.4.4

"make sure that the MX record on the local bind for this domain points to the correct external server"
How do I do this?

is it from" Add DNS zone's record "?

Thanks.