Leo de ésta entrada una lista de dominios de sistemas falsos que se utilizan para enviar emails:

binkmail.com
chogmail.com
devnullmail.com
frapmail.com
guerrillamailblock.com
mailcatch.com
mailinator.com
meltmail.com
obobbo.com
putthisinyourspamdatabase.com
sendspamhere.com
shinedyoureyes.com
spamavert.com
spamcorptastic.com
spamgourmet.com
spamherelots.com
spamhereplease.com
tempinbox.com
temporaryinbox.com
thisisnotmyrealemail.com
trash-mail.com
trashmail.net