If you want to disable registration for users that are using disposable email address
rename this file to disposable_email_blacklist.conf and fill it with the disposable domains
that you want to have blacklisted. Each on its own line without the '@' character as shown below.
Users using emails from these domains will get an error during the registration.

mailinator.com
sogetthis.com
spamgourmet.com
trashmail.net