MXToolbox has a helpful (and free) service. Send an email to ping@tools.mxtoolbox.com and get a link to a report with analysis of your SPF, DKIM, and DMARC records. Resend an email a few hours or so after you've corrected DNS records to confirm the fix.
MXToolbox has a helpful (and free) service. Send an email to ping@tools.mxtoolbox.com and get a link to a report with analysis of your SPF, DKIM, and DMARC records. Resend an email a few hours or so after you've corrected DNS records to confirm the fix.