Known Bad Email Clients
Evolution Mail
As of 2025-July-19, Evolution Mail is vulnerable to two privacy issues, linkPreconnect and dnsLink. I do not know how long they have been vulnerable to these two issues, but they have been aware of one of them for at least 15 months so far and have done nothing to address it or warn their users. They refuse to even put a notice in the client warning people to not rely on the "Load Remote Content" feature for privacy, preferring to delay indefinitely, for the fix to be handled in a library they're choosing to use.
If/when these two issues are fixed, I still can not recommend using Evolution Mail, as the devs have proven that they are completely uninterested in addressing privacy issues in a timely manner, or informing their users when they are exposed. If/when I am confident the bugs and culture are fixed, I will remove Evolution Mail from this list of known bad email clients.
Balsa
As of 2025-July-19, Balsa is vulnerable to two privacy issues, linkPreconnect and dnsLink. They were advised in a bug report which was summarily closed, the same day, without a fix. Development of this client appears to be unfortunately affected by the toxic development culture at GNOME, which does not accept responsibility for security issues in the libraries they choose to use.
Until these issues are fixed, and the culture of denial of responsibility for security issues at GNOME is fixed, I can not recommend using this client.
Geary
As of 2025-July-19, Geary is vulnerable to linkPreconnect. They were advised in a bug report which was summarily closed, the same day, without a fix. Development of this client appears to be unfortunately affected by the toxic development culture at GNOME, which does not accept responsibility for security issues in the libraries they choose to use.
Until these issues are fixed, and the culture of denial of responsibility for security issues at GNOME is fixed, I can not recommend using this client.
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