Why I'm not getting submission emails after the form is submitted?

I would like to know why for the last 3 day the email confirmations have not been received by form submitter nor am I receiving email confirmations. Please help..

We're sorry for this inconvenience, we have a certain delay in sending emails. They were queued up and eventually will be sent. At this time emails are routed through another server so everything should be fine.

Let us know if you're experiencing any further issues.

Thank you!