Curious if there are any recommendations on resolving this. I'm having the same issue on several domains, in which the domain of origin does not receive emails sent from cforms but it shows up fine to other domains.
I've checked spam filters
There is no mail server filtering going on
#3: Relay issues seem most likely, however, I only appear to have this issue with cforms, not with other mail forms I've used inside of WordPress.
The question: are there any cforms configuration settings I might be able to chage that would correct this issue? Any recommendations or guidance appreciated.