A “permerror” result means the domain’s published records could not be correctly interpreted. This signals an error condition that definitely requires DNS operator intervention to be resolved.
What is the issue you’re encountering
Unable to forward email
What steps have you taken to resolve the issue?
modify dns
What are the steps to reproduce the issue?
This problem will occur when receiving emails from [email protected]
And if this is your domain, then you need to clean up the senders on your SPF record drastically.
If I can count correctly (and I’m not sure I can!) you have a million senders specified, including duplicates… leading to 35 lookups, far exceeding the maximum of 10.