For example, I set up a forwarder for webmaster@mydomain.com to two email accounts me@gmail.com and me@anotherdomain.com. When I send an email from my gmail account to the forwarder my "anotherdomain" account gets the message, but gmail doesn't. When I send a message from my "anotherdomain" account to the forwarder, both accounts get it. I checked my gmail spam folder and my message isn't going there.
The clients for whom I set up the site use the forwarders quite a bit, and they are seeing similar problems, particularly when sending a message from a yahoo email account.
Does anyone have any insight into this? I used forwarders at host on which I previously ran this site and they always worked with no problem.