Posts tagged domainkeys
Postfix + DK (DomainKeys) + DKIM + SPF on Debian 6/Ubuntu
51This is part 3 of my guide to getting a mail server configured with all the sexy bits to improve deliverability, spam and virus protection.
Part 1 can be found here and part 2 here.
The key pairWe need to create a key pair to sign emails with
openssl genrsa -out private.key 1024
openssl rsa -in private.key -out public.key -pubout -outform PEM
mkdir /etc/dk/
cp private.key /etc/dk/dk.key
Now we can move on to DK and DKIM signing, make sure you keep the public key for later.
DKIMFirst we'll need to install an application to sign our emails.
apt-get install dkim-filter
Once installed we need More >
HOWTO: DomainKeys with Postfix on Debian/Ubuntu
6I have written a much newer, clearer and better article on DomainKeys signing email here. <
AboutThis guide is a sister to another guide I wrote a while back about how to use DomainKeys Identified Mail (DKIM) with Postfix on Debian, which can be read here - http://syslog.tv/2010/01/11/dkim-on-debian-with-postfix/.
DomainKeys is an older implementation than DKIM, DKIM is a merge of DomainKeys and Identified Mail. Both DomainKeys and DKIM are used so having both configured is a good idea.
Getting startedLets start off by installing the dk-filter
sudo su; apt-get install dk-filter
Once More >