LinuxQuestions.org
LinuxAnswers - the LQ Linux tutorial section.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Server
User Name
Password
Linux - Server This forum is for the discussion of Linux Software used in a server related context.

Notices

Reply
 
Search this Thread
Old 05-28-2009, 11:56 AM   #1
the_gripmaster
Member
 
Registered: Jul 2004
Location: VIC, Australia
Distribution: RHEL, CentOS, Ubuntu Server, Ubuntu
Posts: 356

Rep: Reputation: 38
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.
 
Old 05-31-2009, 05:44 AM   #2
unSpawn
Moderator
 
Registered: May 2001
Posts: 26,987
Blog Entries: 54

Rep: Reputation: 2742Reputation: 2742Reputation: 2742Reputation: 2742Reputation: 2742Reputation: 2742Reputation: 2742Reputation: 2742Reputation: 2742Reputation: 2742Reputation: 2742
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.
 
  


Reply

Tags
sendmail, tls


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
mail misunderstandings /authentication/blocked outbound smtp kevinyeandel Linux - Newbie 0 01-30-2009 08:44 PM
postfix - connection refused on outbound mail asmweb Linux - Server 38 07-07-2008 02:36 PM
Specify Sendmail Outbound IP for E-mail Header lstanderfer Linux - Enterprise 1 11-05-2007 01:12 PM
Postfix: appending to outbound mail conditionally jgombos Linux - Server 0 03-23-2007 08:45 PM
Trying to send outbound mail michaelchunn Linux - Networking 7 08-28-2003 08:02 AM


All times are GMT -5. The time now is 03:25 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration