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Old 04-17-2008, 08:59 AM   #1
carlosinfl
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Registered: May 2004
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Public Key Encryption Support


I am being told that people who use my Postfix email server now have a
need to use public key encryption for sending and receiving e-mails
from Postfix. I have never done anything beyond installing a simply
SSL Verisign certificate on my email server for SSL encryption for
HTML access. Has anyone every dealt with anything like this and know
exactly what my options are? What requirements are there on the
Postfix server as far as configuration or is this simply done on the
client side for encrypting and decrypting the message / header?
 
Old 04-17-2008, 12:19 PM   #2
datopdog
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You can do that by setting up TLS, just note that you can offer TLS but not all peers you are talking to will support it unless you are going to be sending and recieving mail from a few specific clients you know support TLS, then you can reject all non TLS communications.

http://www.postfix.org/TLS_README.html
http://www.topdog.za.net/centos_5_vi...tfix_setup#tls
 
Old 04-28-2008, 01:01 PM   #3
carlosinfl
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I was looking to do something like PGP ($) or GPG (free) but I am not clear on how something like this is implemented...Does this get installed on the email server I am using or is it all handled on the client the users have on their desktops?
 
Old 04-28-2008, 01:16 PM   #4
datopdog
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pgp/gpg is handled by the clients not the server.
 
Old 05-23-2008, 10:47 AM   #5
carlosinfl
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So if I have a Linux Postfix email server and 20 Windows XP clients that connect to the email server, they (20 Windows clients) all would need to install GPG software, right? Nothing on the server to manage / exchange keys?
 
  


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