[groovecoder]

Howdy, relay engineer here.

The random aliases at mozmail.com are certainly the most private option. The subdomain aliases are for convenience so you can make up any alias you want even if you don't have a device on you. (e.g., checking into a hotel, etc.)

As you say - there's always trade-offs involved.

[drdaeman]

Aah, so the personal subdomains are catch-all accounts? So one doesn't have to talk to the Relay services at all and can just give out [e-mail] and it would get forwarded?

If so - thank you, yes, now I see the point. My bad and please consider telling marketing team to highlight this hotel use case more prominently, because without it just comparing @mozmail.com vs @foo.mozmail.com is not really compelling and could be even confusing.