There will probably be way to add either SPF or DKIM authentication
In your customer UI. If not, ask their support.
Edit: on rereading, it sounds like you are using a Claranet domain, not your own? In which case they need to sort it out, and have probably misconfigured something.
Claranet! I used them last millennium.
There will probably be way to add either SPF or DKIM authentication
In your customer UI. If not, ask their support.
Edit: on rereading, it sounds like you are using a Claranet domain, not your own? In which case they need to sort it out, and have probably misconfigured something.