The recipients mail server could still see the message in plaintext. If you are concerned your correspondent's mail server might be used to try to read their messages then another layer of encryption is needed that only the recipient themselves can decrypt and that would be GPG/PGP.
It depends on your particular needs whether that extra step is needed. -- 0x7D964D3361142ACF On Mon, Mar 28, 2016, at 13:45, [email protected] wrote: > If you have your own mta and use imap-s won't that do it? > > Max R.D. Parmer <[email protected]> wrote: > > > Ahh, OK. So secure communications between all these clients. > > > > The two big players for client-side encryption for email or messaging > > data would be GPG and OTR; for VoIP you would want to look into ZRTP. > > There are several clients that support these three protocols on all the > > platforms you've listed (though support for ZRTP is across the board > > pretty rare). > > > > Unfortunately, I'm not aware of any single cohesive guide to tie it > > altogether. > > > > -- > > 0x7D964D3361142ACF > > > > On Mon, Mar 28, 2016, at 09:13, James wrote: > > > Max R.D. Parmer <maxp <at> trystero.is> writes: > > > > > > > > > > > > > > > > Do I understand correctly that you're looking to set up a Gentoo server > > > > as a "hub" from which you can retrieve your mail using any of your > > > > client systems? > > > > > > Not really. Yes that has to work but... What I want to read up on > > > and test is encrypted (secure) communications between the (2) major > > > cell phone types and whatever client on a gentoo workstation. The > > > goal is good security, that is reasonable to setup and manage > > > and allows folks to use any of those 3 devices to exchange encrypted > > > mail. > > > Suppose I had a friend that has an ios phone. What page do I send him to > > > to encrypt his emails? What will work with thunderbird, sylpheed, etc. > > > Some discussion, url links that I can refer others to and then > > > recommendations. > > > > > > > If I understood correctly, interoperability should be easy because > > > > mostly it comes down to IMAP/SMTP/POP3 and support for those protocols > > > > is pretty good across lots of applications. But maybe I got it wrong? > > > > > > What I want to do is find documents that at least provide an overview > > > of which specific apps to put on a cell phone (android or ios) some > > > example configs and then a few docs on the gentoo side. > > > > > > Free or do you buys those apps from a vendor on the cell phones? > > > Which ones are better, i.e. more trusted or have different algos > > > for encryptions (bit-lenght etc). May, I just need to find > > > a forum where this is routinely discuss to see what's new, what's > > > not secure, what may be prohibited by whom, etc etc. > > > > > > > > > OK? > > > > > > James > > > > > > > > > > > > > > > > -- > Your life is like a penny. You're going to lose it. The question is: > How do > you spend it? > > John Covici > [email protected] >
