Hi, I’m looking for a mail client that is well suited for managing multiple identities and can easily handle routing everything over an anonymity network.
I would use Thunderbird, but I think when you take it online, it downloads from all your connected email accounts. I want to “go online” at will toward particular email addresses, in other words I do not want my upstream mail provider to be able to associate my accounts in any way, including access time, assuming there is a large enough other pool of people using the same client/anonymity network.
Are there any that are well made for this purpose? Otherwise I will use the mail frontend over Tor or something, but it would be nice to have a lightweight client-side application too so I can keep my emails downloaded and delete them from the server.
You may create multiple profiles in Thunderbird and open only the one you want selecting it in about:profiles
Can consider using more than 1 email application. Or using Firefox’s containers and access your email service via web (opening the tabs to your email service only when needed).
If you want to prevent IP triangulation stuff, can consider stuff like Port Master or network namespace (if Linux). Idea is that you will run different email applications for different email accounts, and each application will pass through a different VPN tunnel.
Honestly like what others said, I would look towards email aliasing. I usually recommend email aliasing for any activity which you know it would be for a read-only email (ingress/incoming).
Egress/Outgoing is harder to recommend unless its extremely informal or its used to reply to bots.
This way its harder to triangulate your activities through email, as each account uses a unique email alias.
This sounds like a job for email aliasing.
I should clarify that I already have multiple email accounts, so extra aliasing is not necessary. I’m looking for an email client application I can run on my desktop which separates the accounts well enough from the email provider.
How many is “multiple”? You asked for “anonymity focus”. Having 3 different accounts doesn’t solve that.
Right now I have 663 aliases. Everyone who asks me for an email address gets an alias.
Not trying to argue with you, and I’m sorry I don’t have an answer for you, I just think this will better fit your needs.