What to expect
Even for a scratch account, GitHub sends security notifications, device verification and organisation invitations by email. A disposable address means those go nowhere. If your goal is to keep your primary address off commits, use GitHub's own noreply commit address instead — that is exactly what it exists for.
If you decide to try it
- Open the temporary email generator and copy the address that is already waiting.
- Paste it into the signup form for GitHub.
- Watch the inbox — messages appear on their own within seconds of delivery.
- If nothing arrives within two or three minutes, the address was almost certainly filtered. See why websites block temporary email.
The honest caveat
Whatever the verdict above, a disposable inbox expires. If you would be upset to lose the account, register it with an address that will still exist next month. The comparison in temporary email vs email aliases covers the alternative.