Why public Wi-Fi asks for your email
Public Wi-Fi operators collect email addresses for several reasons — some legitimate, some not. Stated reasons include identity verification and terms of service acceptance. Actual uses often include building marketing lists, selling data to advertisers, and profiling users based on browsing behaviour.
A temporary email satisfies their technical requirement (a valid email address) without giving them anything useful for marketing.
Wi-Fi portals where temp email works
| Location Type | Examples | Accepts Temp Email |
|---|---|---|
| Airports | Heathrow, Barajas, CDG, JFK, Dubai | ✓ Usually |
| Hotels | Most hotel chains worldwide | ✓ Usually |
| Coffee shops | Starbucks, Costa, local cafes | ✓ Usually |
| Shopping centres | Most mall Wi-Fi systems | ✓ Usually |
| Train stations | Network Rail, SNCF, Renfe, DB | ✓ Usually |
| Libraries | Public library networks | ✓ Usually |
| Hospitals | Patient and visitor Wi-Fi | ✓ Usually |
How to connect to public Wi-Fi with a temp email
Pro tip: Install Houdininbox as a PWA on your phone home screen — then you always have it one tap away, even before you connect to Wi-Fi. Use your mobile data briefly to get the address, then switch to Wi-Fi.
Security on public Wi-Fi
A temporary email protects your inbox from Wi-Fi marketing but doesn't protect your connection from snooping. On any public Wi-Fi network, consider using a VPN to encrypt your traffic. This is especially important for airports and hotels where network security standards vary widely.