this post was submitted on 30 Aug 2023
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Privacy
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I HIGHLY recommend using custom domains and a email catch all instead of relay services.
Example Online Shop sends email to OnlineShopName@email.mydomain.com
Now in your email client you can filter by the To: line for OnlineShopName@email.mydomain.com and see everything
If you use a service like fastmail that supports dynamic from addresses, when you reply to one of this catch all emails your client's from address will be set to the address you used.
Damn I wish Proton did that! I have to create and delete aliases on the fly on the rare occasion I need them.
But yes I love the custom domain catch all option. Stuff like adding prefixes to do filtering. bills, shopping, newsletters. Then allows easy and automatic filtering to folders.
Proton does offer this with simplelogin right? (Unless I misunderstand what you mean) I always sign up to stuff as @..com where the alias and domain are chosen once and then all adresses to that domain forward to your proton inbox.
Yeah it does. But I don't use simple login.
+1 for fastmail. Been using it for over a year now with my custom domain, very happy. Synced with 1password so it can autogen masked emails.
Custom domains and aliasing services have two slightly different purposes as aliasing services can serve to mask your identity aswell.
A custom domain still enables tracking across accounts.
It would require a human to do that linking. Nobody knows how many people have emails at your domain.
You could use a anonymous domain hosting service to register the domain as well.
Advancements in data science in the past 2 decades have shown the opposite.
The problem is not the paper trail between domain and you but the domain being a proxy for you, the person. Let's take an example: You register the totally anonymous domain algk3oii01aslf0.com. Super duper secure and anonymous, right?
Now you use a catch-all to register your accounts using
servicename@algk3oii01aslf0.comon facebook, Google, M$, Reddit and what have you.Do you see the problem here? If those services were to collaborate (indirectly, they do on a certain level), that'd enable them to identify you as a single entity across these services. Your activity is tracked and attributed to a certain identifier. Whether that identifier is your real name or just a random UUID is of little relevance; it's still you being tracked.
For the services I listed, this discussion is probably redundant as they have thousands of other means to fingerprinting you but you don't have to make it easy for them either.