The EULA gives CCP permissions, not other players.
It doesn't look like that matters, Syylara. EULA section 11(b) covers, seemingly, what happens in-game:
You hereby irrevocably and without additional consideration beyond the rights granted to you herein, assign to CCP any and all right, title and interest you have, including copyrights, in or to any and all information you exchange, transmit or upload to the System or while playing the Game, including without limitation all files, data and information comprising or manifesting corporations, groups, titles, characters and other attributes of your Account, together with all objects and items acquired or developed by, or delivered by or to characters, in your Account.
In other words,
whatever you make of your account belongs to CCP. You probably can't sue on it because you no longer have any stake in it. That likely includes bios, corp descriptions, and Evemail. If (b) fails to cover any one of these, there's (c)....
You hereby grant CCP an exclusive, perpetual, worldwide, irrevocable, assignable, royalty-free license, fully sublicensable through multiple tiers, to exercise all intellectual property and other rights, in and to all or any part of your User Content, in any medium now known or hereafter developed.
User Content is defined as basically anything communicated by Users through the System. EULA s. 11(c), paragraph 1.
Note the front-loaded "exclusive": there's a good likelihood that the "exclusivity" erases your own rights. CCP gets
ALL rights to your work; you are left with none. In effect, the content is owned by CCP. CCP
exclusively. Mind you, the "perpetual" bit is generally against the nature of a "license" (inherently revocable), and might or might not be enforceable; I'd have to look into that.
Basically?
By the EULA, which is a "shrink wrap" contract considered valid in the United States probably primarily for the sake of efficiency, CCP owns whatever you use its system to build or send. That almost certainly includes Evemail.
Because it doesn't need its players suing each other over publication of private comms (Crime and Punishment would be a massive ball of lawsuits waiting to happen), my guess is that CCP would use its
exclusive ownership of that material to deny the plaintiff standing to sue: one who does not own rights in a piece of property cannot generally sue to defend those rights.
That's in the United States. Icelandic law (which is the "choice of law" in the EULA) might look on it differently; how differently, I'd need to research and find out, and frankly neither you nor Milo is paying me for that kind of grief.
Courtesy is one thing. The law is another. The former usually demands more than the latter.
If I wrote it, this would be CCP arming itself, not only against players (in case someone wants to make a movie about their character), but also to crush lawsuits based on game-related matters
between players. Allowing such suits would be colossally bad for business, and CCP didn't hire lawyers to fine-tune that EULA (as they inevitably did) for nothing.
[
Lawyer's disclaimer: again, this is NOT intended as legal advice; this is an internet debate I'm engaged in, and however sure I am of my position I'm not prepared to bet my career on it. Rely on this analysis at your own risk.]