Announcement - A Better Gmail Deliverability

Dear Client,

Gmail / G Suite started enforcing the use of SPF / DKIM / DMARC. This means that any email that is sent to gmail without those elements will be rejected with the message that you are seeing:


550-5.7.1 This message does not have authentication information or fails to pass

550-5.7.1 authentication checks. To best protect our users from spam, the

550-5.7.1 message has been blocked. Please visit

550-5.7.1 for more


If you follow the link in the rejection message then you will see the Authenticate section describing this: 


Sender Policy Framework. You may perform a lookup on your domain SPF by using the following tools:

If you are using a third party DNS but use Cybersite mail services, you may contact your current DNS services provider add the following line in the TXT record.


v=spf1 -all



DomainKeys Identified Mail. You may pronounced as “Di-Kim” if you wish to contact our support on this setup.

DKIM use a ‘private key’ to create signature on the contents of message then attached to it.It is like a secret code that you share among your family members or trusted friends.

When the recipient’s mail server receive the mail then it will ask sender to provide a public key to decrypt the supplied signature.

You can always check the current DKIM record of your domain by referring the following link



Domain-based Message Authentication, Reporting, and Conformance. You may pronounced as “Di-Mark”

It allow sender @ the company to publish a policy with the help of established SPF + DKIM then tell the recipient’s how to handle those unauthenticated mail via my domain DMARC policy.


(V) Protocol version - DMARC1.

(P) - Policy - quarantine or reject.

(PCT) - Percentage of mail subject to filtering - 0 - 100.

(RUA) - Report URI of aggregated reports - Email Address.

(RUF) - Report URI of forensic reports - Email Address

Why applying the above is important to your DOMAIN?

Major email services provider start to enforce those checking from earlier spam score till a direct rejection at email communication, ex: Gmail.

If you need further information and clarification on the news or if you experience difficulties during this period, please contact us via helpdesk at ( or email us at

Best Regards,


Support Team


Technical Support Department