I’ve listed domains to create a blacklist to prevent new member registration with email addresses issued using disposable email addresses.

The following gist listed nearly 500 disposable and temporary email addresses. However, this gist hasn’t been updated since December 2012, so it would be better to reference a more actively maintained fork.

• A list of domains for disposable and temporary email addresses. Useful for filtering your email list to increase open rates (sending email to these domains likely will not be opened).

After a quick search, the following gist seemed to be actively maintained and good:

• michenriksen/disposable-email-provider-domains

The number of disposable email address domains fluctuates around 550.

I want to utilize these disposable email address lists for strict service operations that reject users who engage in spam activities.

That’s all from the Gemba that wants to operate disposable email address services with blacklist management.