Tempr.Email

What it is

Tempr.Email is a newer disposable email service operated under multiple brand names (Discard, Spambog) on the same underlying infrastructure. Customizable inbox names, public reading, no signup.

Why signup forms see so many of these

The multi-brand strategy is explicitly designed to defeat blocklists that block by brand name. discard.email looks unrelated to tempr.email, but both route through the same backend.

Known alias domains

Naive blocklists that only block tempr.email miss every alias below. These are all routed through the same provider.

• tempr.email
• discard.email
• discardmail.com
• spambog.com
• spambog.de
• spambog.ru

The actual production list of Tempr.Email-operated domains is larger. CheckDisposable Email tracks all of them, updated daily.

Block Tempr.Email the right way

Send the signup email to GET https://api.checkdisposable.email/v1/check?email=<email> with a Bearer API key. If is_disposable is true, reject the signup.

// node — block Tempr.Email + all aliases in one call
const r = await fetch(
  `https://api.checkdisposable.email/v1/check?email=${encodeURIComponent(email)}`,
  { headers: { Authorization: `Bearer ${process.env.CDE_KEY}` } }
);
const { is_disposable } = await r.json();
if (is_disposable) {
  return res.status(400).json({ error: 'Please use a real email address.' });
}
// continue with signup

Free plan: 500 checks/month, no credit card. No card. Get a key →