Comment by nickphx
2 years ago
If I understand this correctly.. someone that you communicate with via e-mail may potentially see your username for the email provider you're sending mail from? Why is that an issue?
2 years ago
If I understand this correctly.. someone that you communicate with via e-mail may potentially see your username for the email provider you're sending mail from? Why is that an issue?
I may send mail as a pseudonym but log in to Fastmail using my full name.
That sounds like a process where it's very easy to slip up and if that's something to be concerned about in your threat model maybe you should not be doing that in the first place.
If "support@yourdomain.com" internally is sent to timcook@apple.com, people will know. If it's sent to nickphx+support@fastmail.com, your personal email address, name, and login are leaked.
They can now phish you using your Fastmail username.