Have you considered just buying a domain to use as a catchall address. That's what I use for the small % of services that refuse my simplelogin emails.
this post was submitted on 09 Apr 2026
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Privacy
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It is a valid approach and good idea. But also ppl who do it should know... it ties all the accounts together through a domain no one else uses. With a privacy mail provider there could be millions of others on the domain. With a prvate domain, not so much. It's one more piece of data that helps identity brokers deduce that account A on site A is the same person as account B on site B.
Some might not care about it. Or, they might. Threat models etc.
A way to create some mitigation of this issue can be done using a service like Njalla or Porkbun where you can make the account annonomously and pay in xmr. Sure, all the bullshit signups are still tied to a single domain but that domain isn't tied to anything.
If you are willing to have all your accounts linkable by the signup email, you dont need a temp or relay email service at all. Just sign up for a single random email address somewhere that lets you do it anonymously.
I am happy with addy.io and havnt had any issues. You could maintain a few providers - throw in ddg and mozillas services - so you can try from lots of domains I guess.
Yeah if you read my original comment the catchall is for that small amount of signups that blocks Addy and SimpleLogin.
You're trying to bypass an anti spam filter. If there was a consistent way to do that, spammers would exploit it til the vulnerability was mitigated.
I've been using fastmail and it works, but it's on the expensive side, enough to be unattractive to spammers. So that's one approach.
It's a cat and mouse game, since spammers will leverage this to work around bans or on the major email providers.
These providers often end up on list such as https://github.com/disposable-email-domains/disposable-email-domains