I’m a sender and I don’t want my recipients to see the “via” link. What can I do?
Gmail checks whether emails are correctly authenticated. If your messages are sent by a bulk mailing vendor or by third-party affiliates, please publish an SPF record that includes the IPs of the vendor or affiliates which send your messages and sign your messages with a DKIM signature that is associated with your domain.
[…] Implementing DKIM and SPF for Gmail Best Practices […]