will0

[Here's how signal does it](https://hub.packtpub.com/signal-introduces-optional-link-pre...).

TL;DR, the app establishes a TLS connection directly between your phone and the site, but routes it through a proxy on Signal's server, thereby hiding your IP without being able to view the URL. I imagine Whatsapp works in a similar fashion

Gmail ignores periods in emails. It also ignores everything after the +.

So if your email is bob@gmail.com you can also use:

b.ob@gmail.com, b.o.b@gmail.com, bob+alice@gmail.com,

You can use the second one to do filtering. I.e. use a different +{filter} for bills, entertainment etc.

bob+bills@gmail.com for bills. bob+spam@gmail.com for sites you know will spam you etc.

then setup mail rules to filter based on the +

Oh hey, I work with Andy Stanford-Clark