First of all you need to configure a DNS. If you take a look into the `/etc/hosts`file you should have following lines:
If you change 127.0.0.1 to
And you have an Apache service running, your browser will save google.com if you are typing it but the default apache2 page will be shown.
Let's assume OUR new DNS is for example : mrblackx.service.com
Let's add the users 'postifx' and 'opendkim'.
Now you are creating a file > /etc/opendkim.conf and paste following:
(Make sure you use your own created domain name)
Use a tab between the values.
Let's add trusted host:
Note: I used \n for a new line, make sure you are using the -e for escaped characters.
Let's generate an opendkim key:
To configure postfix we use postconf command:
Adding our mailserver to the mailname :
Starting services:
Now head over to your DNS board and add following entry for SPF:
Use your domain!!
DMARC record:
DKIM Record:
The .... means you have a different MIIB than me. If you need help watch this video :
Depending on the mail server it takes 15 minutes to 72 hours.
(BONUS) IP Rotate for sending:
For each public IP adress, for example 200.200.200.200 run this command
Repeat it for each public IP.
Code:
┌──(father㉿cardingcrew)-[~]
└─$ cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 viperzcrewIf you change 127.0.0.1 to
Code:
127.0.0.1 google.comAnd you have an Apache service running, your browser will save google.com if you are typing it but the default apache2 page will be shown.
Let's assume OUR new DNS is for example : mrblackx.service.com
Code:
echo "mrblackx.service.com" > /etc/hostname
hostname "mrblackx.mail.server.com"
sudo apt install -y -q postfix opendkim opendkim-toolsLet's add the users 'postifx' and 'opendkim'.
Code:
adduser postfix opendkimNow you are creating a file > /etc/opendkim.conf and paste following:
(Make sure you use your own created domain name)
Code:
Syslog yes
UMask 002
Domain father.service.com
Keyfile /etc/mail.private
InternalHosts /etc/opendkim.TrustedHosts
Selector mail
OversignHeaders From
Canonicalization relaxed/relaxedUse a tab between the values.
Let's add trusted host:
Code:
echo -e "127.0.0.1\nlocalhost\nmrblackx.service.com" > /etc/opendkim.TrustedHostsNote: I used \n for a new line, make sure you are using the -e for escaped characters.
Code:
echo 'SOCKET="inet:8891@localhost"' >> /etc/default/opendkimLet's generate an opendkim key:
Code:
opendkim-genkey --domain=mrblackx.service.com --restrict --selector=mail --subdomain --directory=/etc
chown opendkimpendkim /etc/mail.privateTo configure postfix we use postconf command:
Code:
postconf -e "milter_default_action = accept"
postconf -e "milter_protocol = 6"
postconf -e "smtpd_milters = inet:localhost:8891"
posfconf -e "non_smtpd_milters = inet:localhost:8891"Adding our mailserver to the mailname :
Code:
echo "mrblackx.service.com" >> /etc/mailnameStarting services:
Code:
sudo service opendkim start
sudo service postfix startNow head over to your DNS board and add following entry for SPF:
Code:
Record : mrblackx.service.com
Value : v=spf1 a:mrblackx.service.com -allUse your domain!!
DMARC record:
Code:
Record : _dmarc.mrblackx.service.com
Value : v=DMARC1; p=noneDKIM Record:
Code:
Record : mail._domainkey.mrblackx.service.com
(http://mail._domainkey.mrblackx.service.com/)Value : v=DKIM1; k=rsa; s=email; p=MIIB....The .... means you have a different MIIB than me. If you need help watch this video :
Depending on the mail server it takes 15 minutes to 72 hours.
(BONUS) IP Rotate for sending:
For each public IP adress, for example 200.200.200.200 run this command
Code:
iptables -t nat -I POSTROUTING -m state --state NEW -p tcp --dport 25 -o eth0 -m
statistic --mode nth --every 5 -j SNAT --to-source 200.200.200.200Repeat it for each public IP.
