PLEASE READ THE PARAGRAPH BELOW VERY CAREFULLY
If you have a contact form on your WordPress website you are NOT being informed if a potential client with a Yahoo email address contacts you via your contact form. Yahoo email users comprise a large percentage of email accounts, and therefore, you could be missing out on quite a few potential clients.
Here is a link to an article that describes what Yahoo recently did to cause this disruption: http://buzztone.com.au/yahoo-dmarc-issue/
If you are WordPress savvy, you can implement the given changes, yourself.
If you would like us to implement this fix for you, we are doing so at a discounted rate of $50, and you can order this work here: Resolve Yahoo Email Issue
Note: Additional email providers (beyond Yahoo) are expected to implement the same types of changes made by Yahoo, in an attempt to control spam, therefore this is something that should be taken care of immediately.