A Sender Policy Framework record allows ISPs to specify which computers on the Internet can send an email for a specific domain.  Having an SPF record set up on your domain can help to prevent emails from being identified as SPAM. For the latest and most accurate information regarding how to add Blackbaud's IPs to an existing SPF record, please visit our email resource center:

https://bb-email-services.docs.blackbaud.com/faqs/best-practices-faqs/#BPSPF