Well i was working on hacking op7's account creation thingy and i found the list of banned email ending, so here it is

'mailinator2.com'
'sogetthis.com'
'mailin8r.com'
'mailinator.net'
'spamherelots.com'
'thisisnotmyrealemail.com'
'mailinator.com'
'guerrillamail.com'
'tempemail.net'
'mailcatch.com'
'trashmail.net'
'zoemail.net'
'incognitomail.net'
'spamgourme*****m'
'litedrop.com'
'hidzz.com'
'pookmail.com'
'hushmail.com'
'spamaver*****m'
'blockfilter.com'
'deadaddress.com'
'wh4f.org'
'spambox.us'
'mt2009.com'
'spam.la'
'tempinbo*****m'
'saynotospams.com'
'makemoneytradingstocks.org'
'spamcero.com'
'spamcorptastic.com'
'20minutemail.com'
'signed-first-edition.com'
'tempemail.com'
'dumpyemail.com'
'shieldemail.com'
'dodgi*****m'
'dandikmail.com'
'maileater.com'
'haltospam.com'
'nospamfor.us'
'nospam4.us'
'spamfree24.org'
'spamfree24.com'
'spamfree******'
'spamfree24.de'
'spamfree24.info'
'spamfree24.net'
'tempomail.fr'
'mint.us.to'
'skeefmail.com'
'slopsbo*****m'

if your disposable email provider is not on that list, then as of 4/26 1:34 am est then your good to go