Slackin - Create your own public Slack chat community
TempMail - Temp Mail is the provider of fake and temporary email ID.
Hamster Pad - A social network built on top of Slack
10 Minute Mail - Temporary disposable e-mail service to beat spam. Avoid spam with a free secure e-mail address.
Mio - Powering seamless communication between workplace chat apps.
Mailinator - Any Inbox. Any Time.