How long should it take a form embedded by email to get to client?

I would think this would be immediate, but I have tried sending forms by email to myself to test and still nothing has come though thirty minutes later. I have also recently had a client say she didn't receive the email at all and had to resend it. I don't want to lose clients because of this.

Hi,

The email notification or autoresponder should be immediate.

You can check in your account E-mail History logs for the the status of the sent emails.

User Guide http://www.jotform.com/help/293-How-to-view-all-your-form-Email-History

If the email address is bounce listed, you can also unblock it.  Check this user guide 

http://www.jotform.com/help/262-How-to-remove-your-email-address-from-bounce-list

Hope this help. Please inform us if issue persist.

Thanks!