Email Notifications

My forms had been working fine until recently. At first, it seemed like they had stopped working completely, but after some testing, I noticed that they worked fine as long as the sender's email have the domain pleasantonusd.net, which is the domain for the Google Apps email system we are using. It doesn't matter what the jsmith@ part is, as long as the domain is pleasantonusd.net the email goes through.

I am hosting the site on a remote server. The WP general settings email and the server's admin email are both my private email account which doesn't have anything to do with pleasantonusd.net. The CIMY Swift SMTP plugin is set up for the server with the SMTP server address: mail.amadorvalleyhs.org, Port: 465, Username: postmaster@amadorvalleyhs.org.

Since pleasantonusd does not seem to be in the picture in any of these variable, is there anywhere else where I may have inadvertently plugeed in some kind of formula or routing algorhythm? I've checked the form itself and I don't seem to see anything there. (Note: I do have the code you provided for automatically deteling entries in the functions.php file.)

Thanks,

Erik

I turned off all plugins, switched to the 2010 theme and did everything else that was recommended, although I have not yet heard back from my host provider.

Here are the smtp settings:

never overwrite the sender
smtp server address: mail.amadorvalleyhs.org
port: 465
ssl

I guess the nagging question is why does it work with one particular domain (pleasantonusd.net) and not others. Since the host is not associated with the domain, I would think that the problem is something that I am doing with Gravity Forms. Could there be something that I did on the form side that is causing this mistake to happen?