Review for MailHops by obook
Rated 5 out of 5 stars
According Mailhop website, this project is down. I am so sorry as was a wonderful extension.
News June 2014 : Andrew says that MailHops is back! so I highly recommend this wonderful extension. Thank to his sponsor.
Thanks to Sendgrid to sponsoring the hosting I was able to bring the service back.
To create your own collections, you must have a Mozilla Add-ons account.