Is there someone who can help me?
My users are not able to send or receive email.
I suspect it is the setting:
Allow / Disallow local delivery
Allow local delivery
When I enable the Require Authentication the users are only able to receive.
The other way around they are only able to send.
MXToolbox shows Local Delivery not Allowed.
Looking at DNS, I had contact with my DNS provider and the domain is setup properly, so that could not be the case, they’ve checked.
I really really need help, who is willing?
Kind Regards, FrankB