Here are the current IP address ranges from which Blackbaud NetCommunity (BBNC), Blackbaud Internet Solutions (BBIS), or Online Express (OLX) email are sent:

205.139.104.0/22 (205.139.104.1 - 205.139.107.254)

216.235.196.0/22 (216.235.196.1 - 216.235.199.254)

216.235.200.0/21 (216.235.200.1 - 216.235.207.254)



 

These IP addresses can be added to an existing SPF Record.