Sender Policy Framework (SPF) is a simple email-validation system designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain comes from a host authorized by that domain's administrator


Ask your DNS administrator of your "" to add an extra record. A SPF is an record in extention "txt", the text should be between quotes.

Example SPF record

"v=spf1 a mx ?all" 

Explaination SPF record:

v=spf1 - This txt record will be used for SPF sends mail from this domain
mx - Every server that is mentioned as mx server for ""  will have permission to send mail - Every server of the domain "" will be able to send mail
?all  - When a server does not comply with the above then it will be answered "neutral"

Extra infomation

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