hi,
i hope you have implement the right setting:
From Name and From email with another email and also change your admin email. To do this please go to wp-admin ->LMS -> Setting -> Enmails-> Email options. Refer : http://prntscr.com/k1x7kv
and if you did the same then t
his is a server specific issue, because wplms just sends the email and then its the server who sends the email to your inbox or spam folder.
This is not related to wplms theme, so try contacting your webhost on this.