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Your username is not a secure part of the authentication process. In most companies, people’s username is easily guessable, or even public information. I feel
by slau 3y ago
Your username is not a secure part of the authentication process. In most companies, people’s username is easily guessable, or even public information.
I feel you’re making a very massive issue out of something that is… not?
Yes, sharing the full headers of your emails will reveal some information, potentially even personally identifiable information.
- k_roy 3y agoI think you are missing the point by a mile. Their whole spiel is about "privacy first". https://www.fastmail.com/privacy-first-company https://www.fastmail.com/privacy-first-company I don't even use my @fastmail.com address. I have like 6 domains that I use for various things, and a single domain for one-time/throwaway/order emails via 1Password integration. I just verified every time I send an email, my main @fastmail account is attached in every email. I don't care about people knowing my email, but security isn't the point or even the concern. If I'm using an alias, I don't want account A associated to account B, especially for a service I'm paying for to keep my email out of the hands of Google.
- slau 3y agoI was mainly responding to OP’s claim that this is “a security leak”. Likewise, from OP, I mainly understood that this was only an issue when giving a third party the headers of emails you have received. However, you (and other commenters) appear to be indicating it’s also in the headers of all sent emails? I’ve been using Fastmail for nigh on a decade, however if this turns out to be true, I may accelerate my migration towards Migadu.
- reilly3000 3y agoMigadu and don’t look back
- k_roy 3y agoThis is a bit of an interesting take from: https://www.migadu.com/procon/ https://www.migadu.com/procon/ "We could enable 2FA on the webmail, but IMAP/POP/SMTP accesses remain unprotected which beats the purpose. We are working on solution here which will allow sand-boxing a username/password pair to a webmail use only." That's an incredibly misguided sentiment
- dejan 3y agoWhy?
- k_roy 3y agoBecause it's the difference between someone gaining access to a single mailbox versus the whole config.
- dejan 3y agoI think you're reading that wrong. It's an issue with the protocol. IMAP/SMTP as implemented in most clients do not support 2FA. You can add 2FA on your own on the webmail, but you could still circumvent it by using the protocol directly. It's not a Migadu-specific thing.
- deleted 3y ago[deleted]
- wrboyce 3y agoHow did you verify this? That isn’t the issue being reported, the header is attached to your inbound mail.
- throwawayfm 3y agoIt is. I'm using custom domains, but my username email is private and NEVER used or known.
- rlpb 3y ago> ...but my username email is private and NEVER used or known. This feels like an architectural flaw to me. If it's supposed to be private, then why is it available to send to on the public Internet, in a way that you are now therefore sensitive about?
- throwawayfm 3y agoThat's the whole issue.. I don't use that email address for email, and I don't want it leaked.