LinuxQuestions.org

LinuxQuestions.org (/questions/)
-   Linux - Server (http://www.linuxquestions.org/questions/linux-server-73/)
-   -   TLS connection for outbound mail (http://www.linuxquestions.org/questions/linux-server-73/tls-connection-for-outbound-mail-729123/)

the_gripmaster 05-28-2009 11:56 AM

TLS connection for outbound mail
 
I have set up my MX servers to receive incoming connections to port 25 using TLS. I have tested the TLS connections and it is handling incoming TLS connections for inbound email without any problem.

Now, I would like to make sure my MX servers connect to a certain domain (eg visa.com) using TLS connection for outbound emails, i.e. delivering emails from my MX servers to the MX servers of visa.com. How can I make sure my MX servers use TLS connection when delivering email to the visa.com domain?

I am using sendmail 8.13.8 on RHEL 5.2.

Thanks in advance.

unSpawn 05-31-2009 05:44 AM

IIGC you use "TLS_Srv:${domainname} ENCR:${portnumber}" in /etc/mail/access. Watch those caveats though. I wonder what happens when a MTA doesn't accept TLS. If there's no TLS it can't be mandated... Plus this only gets you channel integrity, right? It's not the same as using file encryption.


All times are GMT -5. The time now is 05:56 PM.