Port 25 in VCCLHOSTING is blocked by default. If you need to send out email , you can follow this tutorial to setup your Exim to send email via Gmail SMTP server.
Install Exim4
apt-get install exim4
Configuration
Run following command to configure Exim4.
dpkg-reconfigure exim4-config
Choose this option when asked: "mail sent by smarthost; no local mail".
Fill in the rest of the fields:
System mail name: YOUR_HOSTNAME
IP-addresses to listen on for incoming SMTP connections: 127.0.0.1 ; ::1
Other destinations for which mail is accepted: <BLANK>
Visible domain name for local users: <BLANK>
IP address or host name of the outgoing smarthost: smtp.gmail.com::587
Keep number of DNS-queries minimal (Dial-on-Demand)? No
Split configuration into small files? No
Root and postmaster mail recipient: <BLANK>
Open and edit /etc/exim4/exim4.conf.template.
Search for:
.ifdef DCconfig_smarthost DCconfig_satellite
Then add these lines after it:
send_via_gmail:
driver = manualroute
domains = ! +local_domains
transport = gmail_smtp
route_list = * smtp.gmail.com
Remove other smarthost blocks that contains domains = ! +local_domains.
Search for:
begin authenticators
And add these lines after it:
gmail_login:
driver = plaintext
public_name = LOGIN
client_send = : YOUR_GMAIL_ACCOUNT@gmail.com : YOUR_GMAIL_PASSWORD
Remove other authenticator blocks that contains public_name = LOGIN.
Search for:
transport/30_exim4-config_remote_smtp_smarthost
And add these lines after it:
gmail_smtp:
driver = smtp
port = 587
hosts_require_auth = $host_address
hosts_require_tls = $host_address
Save and close /etc/exim4/exim4.conf.template.
Apply the new configuration:
update-exim4.conf
Restart Exim4 service:
/etc/init.d/exim4 restart
Testing
Now send a test email using following command:
echo 'Test Message from VULTR.' | mail -s 'Test Message' YOUR_EMAIL_ADDRESS
Check /var/log/exim4/mainlog if any errors occurred. You can now create support ticket
