email not sent other server - Ubuntu Exim Nginx Vesta

I have the Ubuntu 14.0.5 droplet (X64) and installed Vesta Panel with Ngynx by following the link:

https://www.digitalocean.com/community/tutorials/how-to-install-vestacp-and-set-up-a-website-on-ubuntu-14-04

I have problems sending emails. I created an e-mail in Vesta Panel called myemail@mydomain.com.br and other otheremail@mydomain.com.br called. Emails normally receive. But there is failure when sending e-mail recipient is in another domain.

Example: Send email myemail@mydomain.com.br to otheremail@mydomain.com.br (Ok - Success) Send email myemail@mydomain.com.br to example@hotmail.com (Not Ok - Failure)

My var/log/exim4:

2016-09-02 21:25:09 1bfvnF-0006pC-LQ mx1.hotmail.com [XXXXXXX] Connection timed out 2016-09-02 21:25:09 1bfvnF-0006pC-LQ == example@hotmail.com R=dnslookup T=remote_smtp defer (110): Connection timed out sender verify defer for example@hotmail.com: host lookup did not complete

The file etc/exim4/exim4.conf.template […] dnslookup:

driver = dnslookup

domains = !+local_domains

transport = remote_smtp

no_more […]

The file etc/exim4/update-exim4.conf.conf

[…] dc_eximconfig_configtype=‘local’

dc_other_hostnames=‘MY HOSTNAME’

dc_local_interfaces=‘127.0.0.1 ; ::1’

dc_readhost=‘’

dc_relay_domains=‘’

dc_minimaldns=‘false’

dc_relay_nets=‘’

dc_smarthost=‘’

CFILEMODE=‘644’

dc_use_split_config=‘false’

dc_hide_mailname=‘’

dc_mailname_in_oh=‘true’

dc_localdelivery=‘mail_spool’

In Vesta Panel, the firewall is:

ACCEPT PORT: 25,465,587,2525 IP: 0.0.0.0/0 TCP

Please, I’m already there several hours trying and I’m not getting. If you can give me step by step what I have to do. PS: I do not have advanced knowledge in linux