Problem with emails being sent to references

The people completing our "Orientation Leader Application" are submitting references with email addresses attached. These references' email addresses are supposed to be receiving an email containing another jotform survey. However, we have had numerous complaints that the references are not receiving any emails. 

We were hoping that someone could look into why the email addresses under "NIU Reference Email" and "Reference Email" are not getting those emails sent along. 

Thank you!

Hello NIUOrientation,

I did check your form's notification email alerts and did not find any issue with that. It should be sending the auto-responder emails correctly. 

I am not sure if the emails ended up in spam folder. Can you ask your users to check their spam folder? I did check our email logs and found that emails are being sent successfully. Please check few of the logs below for the latest submission you have received:

[2014-09-30 23:29:39] Submission #287943378617522536 Form #42234343981151 SENT to RhetoricalFusionDude@niu.edu from kbak1@niu.edu via SENDMAIL [2014-09-30 04:11:15] Submission #287873874878192813 Form #42234343981151 SENT to RhetoricalFusionDude@niu.edu from kbak1@niu.edu via SENDMAIL

[2014-09-30 23:29:39] Submission #287943378617522536 Form #42234343981151 SENT to cmack2@niu.edu from kbak1@niu.edu via SENDMAIL

If the issue persists, I would suggest you to change the "Sender Email" to "noreply@jotfor.com" and see if that makes any difference.

Do get back to us if the issue persists.

Thank you!