diff --git a/config/dkim/opendkim.sh b/config/dkim/opendkim.sh
new file mode 100644
index 0000000..99be8b6
--- /dev/null
+++ b/config/dkim/opendkim.sh
@@ -0,0 +1,50 @@
+clear
+echo "Domain without www or e-mail:"
+read domain
+
+domonly=${domain}
+domain=mail.${domain}
+dhparam=1024
+
+apt install opendkim opendkim-tools -y
+
+gpasswd -a postfix opendkim
+
+sed -i -e 's/#Canonicalization       simple/Canonicalization       relaxed/simple/' -e 's/#Mode                   sv/Mode                   sv/' -e 's/#SubDomains             no/SubDomains             no/' /etc/opendkim.conf
+echo "" >> /etc/opendkim.conf
+echo "AutoRestart         yes" >> /etc/opendkim.conf
+echo "AutoRestartRate     10/1M" >> /etc/opendkim.conf
+echo "Background          yes" >> /etc/opendkim.conf
+echo "DNSTimeout          5" >> /etc/opendkim.conf
+echo "SignatureAlgorithm  rsa-sha256" >> /etc/opendkim.conf
+echo "" >> /etc/opendkim.conf
+echo "# Map domains in From addresses to keys used to sign messages" >> /etc/opendkim.conf
+echo "KeyTable           refile:/etc/opendkim/key.table" >> /etc/opendkim.conf
+echo "SigningTable       refile:/etc/opendkim/signing.table" >> /etc/opendkim.conf
+echo "" >> /etc/opendkim.conf
+echo "# Hosts to ignore when verifying signatures" >> /etc/opendkim.conf
+echo "ExternalIgnoreList  /etc/opendkim/trusted.hosts" >> /etc/opendkim.conf
+echo "" >> /etc/opendkim.conf
+echo "# A set of internal hosts whose mail should be signed" >> /etc/opendkim.conf
+echo "InternalHosts       /etc/opendkim/trusted.hosts" >> /etc/opendkim.conf
+
+mkdir -p /etc/opendkim
+mkdir -p /etc/opendkim/keys
+chown -R opendkim:opendkim /etc/opendkim
+chmod go-rw /etc/opendkim/keys
+
+echo "*@$domonly    default._domainkey.$domonly" >> /etc/opendkim/signing.table
+
+echo "default._domainkey.$domonly     $domonly:default:/etc/opendkim/keys/$domonly/default.private" >> /etc/opendkim/key.table
+
+echo "127.0.0.1" >> /etc/opendkim/trusted.hosts
+echo "localhost" >> /etc/opendkim/trusted.hosts
+echo "" >> /etc/opendkim/trusted.hosts
+echo "*.$domonly" >> /etc/opendkim/trusted.hosts
+
+mkdir -p /etc/opendkim/keys/$domonly
+opendkim-genkey -b $dhparam -d $domonly -D /etc/opendkim/keys/$domonly -s default -v
+chown opendkim:opendkim /etc/opendkim/keys/$domonly/default.private
+
+clear
+cat /etc/opendkim/keys/$domonly/default.txt
\ No newline at end of file