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Showing posts from July, 2014

DKIM Signing for postfix mail server Ubuntu Server 12.04

DomainKeys Identified Mail (DKIM)Lets an organization take responsibility for a message that is in transit. The organization is a handler of the message, either as its originator or as an intermediary. Their reputation is the basis for evaluating whether to trust the message for further handling, such as delivery. Technically DKIM provides a method for validating a domain name identity that is associated with a message through cryptographic authentication.
In essence, it will help you to avoid going your mail into spam. Follow each steps remember to change example.com with your domain.
And selector with your selector(ie, any text).
1.Login to root and install opendkimsudo su sudo apt-get install opendkim opendkim-tools 2.Making directory and generating keysmkdir /etc/opendkim/ cd /etc/opendkim -s means selector so change the word after it we have to chose a selector, here selector
-d means domain so change the word after it as our need,here example.com
opendkim-genkey -s selec…