I am not receiving any email from UE

I am not receiving any email from a form on a site I am developing. I have used the same hosting services before and had no problem setting up functional email forms via Universal Email. I have been going through and error checking numerous times and have found nothing to disrupt the email functionality.

I checked my POP3 to make sure spam filters were not blocking messages sent from the site.

I have repeatedly back tracked my steps to make sure I had no typos with email server info on UE's UI.

I have successfully sent emails via UE from the same web hosting service from other domains.

I am not sure what I am missing, is there a limit on characters in the SMTP name UE can handle? Currently, the least amount I can use in the SMTP name is 26 characters because of the very long DN I have to deal with. I really don't know what's wrong. I had no problem with TFMail in previous mailer forms on this site; however, I opted for Universal Email when asked to switch code from Perl to PHP.

If anyone has advice I would greatly appreciate it.
Thanks for your time in advance.
Phil