Postfix, by default, will forward mail to authorized remote destinations only. Authorized remote destinations are defined with the relay_domains configuration parameter. The default is to authorize all domains (and subdomains) of the domains listed with the mydestination parameter.
Example:
What is your $mydestination set to?
Postfix, by default, attempts to deliver mail directly to the Internet. However your system may be behind a firewall, or it may be connected via a provider who does not allow direct mail to the Internet. In those cases you need to configure Postfix to deliver mail indirectly via a relay host. You should specify one (and only one) of the following:
We recently installed a new release of SCO UNIX (5.0.6) and when I try to relay e-mail from the UNIX box to my NT server (the mail server) I get the following message from sendmail.
Deferred: Connection timed out with nt
I have nt set up as my relay server in sendmail.cf and the mail seems to... (8 Replies)
Hai All,
I have problem during HTTP benchmarking with polygraph tool on EM64T machine.
Benchmarking results are getting problem bcas of connection timed out system errors. Machine log information is as,
/var/log/messages.3:Feb 18 16:17:44 proxy64 network: Bringing up interface eth0: ... (0 Replies)
I am trying to connect with my hp machine using "dialup networking." It times out after 30 seconds. Is there a way to adjust this time. Would it have anything to do with rexec?
thanks (0 Replies)
When i put the target IP as 127.0.1.1, the program is working fine, can catch blocked & open ports. But when i try to scan remotely, i get connection timed out! Can you tell me why? :(
Here is my code - Look at between where i put astriks - at the bottom:
#include<iostream>... (3 Replies)
Hi guys
One of our clients have a problem with sending email to a certain domain. No matter what we try, the mails just dont get delivered.
What I did then, is created a new connector on their Exchange server, pointing all mail sent to their client at "domain1" to relay to our Postfix mail... (0 Replies)
Hi,
I did setup one E-mail Server with postfix/dovecot/squirrelmail on CentOS 5.x and is working fine.
I did configure SMTP authentication (without TSL/SSL) so that users from outside can send emails via our email server with SMTP auth. One weird issue i'm getting is that it's working from... (1 Reply)
Hi everyone,
I am hoping anyone of you could help me in this weird problem we have in 1 of our Solaris 10 servers. Lately, we have been having some ftp problems in this server. Though it can ping any server within the network, it seems that it can only ftp to a select few. For most servers, the... (4 Replies)
Hello,
I have two AIX6.1 machines that can communicate with each other through ssh.
The problem is that one of them somehow closes the connection after some time and i don't know the reason of that.
For example today i send through rsync command 7 files from one server to the other. It send... (7 Replies)
Hello Folks,
I have what I believe is a basic problem. I'm sure the problem is related to my incorrect understanding of the terms used by the postfix main.cf file.
I have two mail servers. 192.168.1.110 (msrecycle.com) and 192.168.1.111 (sportbikebody.com). Now what I am trying to do is have... (1 Reply)
Discussion started by: SportBikeBody
1 Replies
LEARN ABOUT DEBIAN
postfix-nochroot
postfix-nochroot(8) System Manager's Manual postfix-nochroot(8)NAME
postfix-nochroot - change /etc/postfix/master.cf to not use chroot
SYNOPSIS
postfix-nochroot
DESCRIPTION
Renames /etc/postfix/master.cf to /etc/postfix/master.cf.bak and creates a new /etc/postfix/master.cf file with every service configured to
not use chroot. Every modified line is commented. It also restarts Postfix (to apply the change) and rmoves the unused chroot directories
/var/spool/postfix/{etc,lib,usr} .
Using a chroot environment makes upgrades more difficult and gets in the way when running SE Linux (without actually providing any security
benefit in a SE Linux system).
SEE ALSO selinux(8), sestatus(8), selinuxenabled(1), check-selinux-installation(8), selinux-config-enforcing(8), selinux-policy-upgrade(8),
http://wiki.debian.org/SELinux - More about SELinux Debian install, http://etbe.coker.com.au/tag/selinux/ - Russell's SE Linux blog posts,
http://etbe.coker.com.au/2008/08/02/postfix-and-chroot/ - post about this script.
AUTHOR
This program and it's man page was written by Russell Coker <russell@coker.com.au> for the Debian system (but may be used by others). Per-
mission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 3.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-3.
postfix-nochroot(8)