DomainKeys Identified Mail (DKIM) keys should be a minimum of 1024 bits.
In January 2013, Gmail started blocking email signed with DKIM keys that were less than 1024 bits because of security vulnerabilities.
DomainKeys Identified Mail (DKIM) keys should be a minimum of 1024 bits.
In January 2013, Gmail started blocking email signed with DKIM keys that were less than 1024 bits because of security vulnerabilities.