Outgoing mail is now signed using DKIM
Outgoing mail that customers send through our servers is now digitally “signed” using DomainKeys Identified Mail (DKIM). Receiving mail servers can check the DKIM signature and know that a message was really sent by someone @ your domain name, which can help them detect and block spam forgeries.
The signing is automatic, and most customers don’t need to do anything to get the benefit of it. You can find details on our page about DKIM.
Customers should not notice any changes due to DKIM signing, but don’t hesitate to contact us if you have any questions or trouble.