I am using it since like 5 years (?) and had no major problems with it. Only downsides where the ugly implementation of 2FA at the beginning and the bad support for e-mail encryption/signing.
For me the overall handling was bad in their frontend if you just wanted to use it for specific mails. If you wanted to encrypt your whole inbox it was working just fine. But then you had no possibility to decrypt the mails in their frontend and relied on using 3rd party browser extensions.
And you had no way to bind the public key to your account and make it accessible for everyone publicly.
For example I would expect them to have a keyserver hosting the public Keys of their customers and making sure that only the real customer is able to update his public Key. So nobody else can publish a public key for a given E-Mail without being the owner of the E-Mail.
An ideal implementation could be Web Key Directory (short WKD).
I did a quick search if mailbox.org supports WKD. It looks like mailbox.org Guard somehow supports it, but I never tried it. So maybe it is worth having a look at that.
I am using it since like 5 years (?) and had no major problems with it. Only downsides where the ugly implementation of 2FA at the beginning and the bad support for e-mail encryption/signing.
What’s wrong with the encryption/signing
For me the overall handling was bad in their frontend if you just wanted to use it for specific mails. If you wanted to encrypt your whole inbox it was working just fine. But then you had no possibility to decrypt the mails in their frontend and relied on using 3rd party browser extensions.
And you had no way to bind the public key to your account and make it accessible for everyone publicly.
What do you mean by this?
For example I would expect them to have a keyserver hosting the public Keys of their customers and making sure that only the real customer is able to update his public Key. So nobody else can publish a public key for a given E-Mail without being the owner of the E-Mail.
An ideal implementation could be Web Key Directory (short WKD).
I did a quick search if mailbox.org supports WKD. It looks like mailbox.org Guard somehow supports it, but I never tried it. So maybe it is worth having a look at that.