Email Deliverablity

We have customers with email domain @kma.today and sadly emails sent from Infusionsoft are failing with the reason “blocked”.
Customer has added Infusionsoft domain to their safe sender list
Anyone know if there is a problem with Infusionsoft not recognising customer domain as it does NOT have the normal ending ie .co.uk or .com
Any constructive ideas/suggestions welcome

thanks
Caley - Birmingham, UK

Hi @Caley_Lewis,

I’ve checked and they are not setup properly with SPF and that means it is not most likely setup correctly for DKIM. The don’t have DMARC either (that is a lesser concern). For DKIM, their app would look like the following under marketing->settings and selecting Email Authentication: