If you are experiencing difficulty receiving emails sent via your web sites code the following solutions may help:
1. Check to ensure the correct host/server is being used. This is usually "localhost". For some coding examples search for the KB Article called "Mail server to use in web site code"
2. Check the recipient address being used. If the recipient domain is hosted with us, make sure the DNS is set correctly and the mail is also hosted with us. If the mail or dns is hosted elsewhere, contact support so they can adjust the records on our end to match.