SPF is an extension to e-mail, which prevents unauthorized senders from forging your e-mail address. Your setup may need to be adjusted, so e-mails sent by the e-mail marketing system are not classified as unauthorized.

If you have full access to your DNS server, please click here for instructions how to create a valid SPF record. If you do not have access, please contact the support of your webhosting company and request inclusion of the domain "rapidsmtp.com" into your SPF record (example SPF record: "v=spf1 a mx include:rapidsmtp.com -all").

On each start the application checks for a correctly installed SPF record. The check will return one of the follow states:

• Installed

SPF record is installed correctly.

• Not Installed

SPF record is not installed. You can still use the application. For the highest deliverability rate please consider to install a SPF record. Click here for more information.


• Unknown

State of SPF record cannot be determined. Your SPF record might be invalid or more than one SPF record is installed. 

• Wrong SPF record - please click here

Your SPF record does not allow e-mails to be sent by the e-mail marketing system. Please follow these instructions or contact support for further assistance.