Gentoo Archives: gentoo-user

From: JM <jmurray315@××××××××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: encrypted email (gentoo-windows)
Date: Sun, 27 Mar 2011 20:12:29
In Reply to: [gentoo-user] Re: encrypted email (gentoo-windows) by James
1 Hi - if you want to be able to send encrypted email from a linux machine
2 that a person using a windows machine can de-crypt and read securely, the
3 simplest way is to use the Gpg4win (for the windows machine) which
4 incorporates Claws Mail (a port of a linux email client which is also
5 available on Gentoo). Claws mail is in Portage. So at the simplest level, if
6 you install the Claws email on your linux box, along with a pgp encryption
7 tool (I think it's called Gpg, not 100% sure what the Portage package is,
8 but any pgp encryption tool will probably work, it may already be built in
9 to Claws), then advise your windows recipients to install Gpg4win (google
10 it) which is a windows package which includes Claws mail, you will be able
11 to exchange encrypted emails securely between linux and windows recipients.
12 On the windows machine, the Gpg4win package will encrypt & decrypt email,
13 you will only need to find a gpg related tool for the linux machine in order
14 to encrypt your emails on it before sending them. I'm not really sure what
15 gpg uses, it may well use pgp encryption which is standard and there will be
16 a tool in Portage which can encrypt and decrypt email using pgp (or at least
17 one to encrypt and decrypt any file which can then be forwarded by email).
19 TBH - the encryption side of it is really OS independent, but using Gpg4win
20 on windows and any linux email client which supports pgp encryption /
21 signing should give you what you are looking for (Gpg=Gnu Privacy Guard).
22 You will just need to double check that whatever you use on the linux side,
23 is compatible with Gpg.
26 On 27 March 2011 03:03, James <wireless@×××××××××××.com> wrote:
28 > Sebastian Beßler <sebastian <at>> writes:
29 >
30 >
31 > > Mail encryption is, as far as I know, something that works on the
32 > > client-side only. The mail server doesn't see the encryption, encrypted
33 > > mails contain only text, just like every other mail.
34 > >
35 >
36 > OK let's ignore the mail server portion. Your basically implying
37 > that encrypted mail handling from the server, does not matter if
38 > it's an exchange server, or *nix, like postfix....
39 >
40 > As an example.
41 > Look at the situation where a person is using only MS technology
42 > and has no access to support(input) on their client software nor the
43 > MS exchange server (big corp for example that assumes the world
44 > only uses MS software). Maybe they can make a few setting changes
45 > only in Outlook to get encryption working between a MS (Outlook)
46 > system and my Gentoo system using pgp and thunderbird?
47 >
48 >
49 > > If may answer has nothing to do with your problem, please give me more
50 > > information what you have in mind.
51 >
52 > I do not have a problem. I have assumed that encrypted mail between
53 > a given client software on a gentoo system, will not work with windows.
54 > Is this assumption incorrect?
55 >
56 > Or it's just install whatever I want (mail client on gentoo) and it will
57 > auto-magically exchange encrypted mail with outlook on a windows machine,
58 > behind a MS Exchange server, regardless of what the MS admins
59 > do on their side?
60 >
61 > I assumed that is not that easy (my default experience with MS),
62 > and things have to be coordinated, like most MS issues, to be
63 > able to exchange encrypted mail between a gentoo and MS workstation....
64 >
65 > Nothing to it, or massive issues on the MS side? Obviously,
66 > making changes on the gentoo workstation client, is easy....
67 > What I would really like is to be able to exchange encrypted mail
68 > with any MS user. That, I'm sure with entail pointing them to
69 > documents on how to set up the software on the MS (outlook) side.
70 > Links for MS help?
71 >
72 > ???
73 > A general discussion at this point, not a specific solution.
74 > My googling only reveals dated discussions along these lines
75 > or information that is not useful.
76 >
77 > James
78 >
79 >
80 >
81 >
82 >
83 >