Replacing 6to4 tunnel with 6in4. IPv6 enabling Bind, Exim, SPF, Squid, and updating Databases containing IP addresses.
Implementing DKIM with Exim
This article was updated in February 2014 to reflect changes in policy and reporting options. The earlier ADSP (Author Domain Signing Practices) information has been removed. DomainKeys Identified Mail (DKIM) provides a method to confirm the origin of an e-mail. DKIM also provides some protection against tampering. Unlike SPF, this validation applies to the contents… Continue reading Implementing DKIM with Exim