eNewsletter Error on New Registration

eNewsletter is performing exactly as I would like it to, with the exception that when a new member registers and a welcome email is sent out I get an error in wp-admin of

[17-Nov-2016 00:18:46 America/Toronto] PHP Warning: imap_open(): Couldn't open stream {christiangays.com:110/pop3/norsh/novalidate-cert/tls}INBOX in /home/mary/public_html/mary-content/plugins/e-newsletter/email-newsletter-files/class.functions.php on line 1672

I originally had it set for 995 with SSL and got the same error so I've put it back to 995 now.

Can you please tell me how to fix this error.
Thank you.
Support Access is granted.