SPF DNS entries for communities.bentley.com are incorrect

Per this thread:

https://communities.bentley.com/products/projectwise/content_management/f/projectwise-powershell-extensions-forum/174891/have-the-email-notifications-for-this-community-stopped-sending

Notification emails from communities are being rejected because the SPF policy for communities.bentley.com is wrong.

the SPF policy entries (https://mxtoolbox.com/SuperTool.aspx?action=spf%3acommunities.bentley.com&run=toolpage) lists a single IP address and the emails are coming from different IP address (or addresses, I just checked one of my emails).

I seem to be getting most notifications because i whitelisted the domain. Or our email gateway doesn't reject on spf fail.