package postfix 2.5.5-1.1 failed to install/upgrade:

Running newaliases
newaliases: warning: valid_hostname: misplaced delimiter: linux1.hsd1.pa.comcast.net.
newaliases: fatal: file /etc/postfix/main.cf: parameter myhostname: bad parameter value: linux1.hsd1.pa.comcast.net.
dpkg: error processing postfix (--configure):
 subprocess post-installation script returned error exit status 75
dpkg: dependency problems prevent configuration of bsd-mailx:
 bsd-mailx depends on postfix | mail-transport-agent; however:
  Package postfix is not configured yet.
  Package mail-transport-agent is not installed.
  Package postfix which provides mail-transport-agent is not configured yet.
dpkg: error processing bsd-mailx (--configure):
 dependency problems - leaving unconfigured
Processing triggers for libc6 ...
ldconfig deferred processing now taking place
Errors were encountered while processing:
 postfix
 bsd-mailx
Log ended: 2009-05-13 14:58:30

Perhaps the trailing dot is the problem?

I'm afraid that I am a virgin newbie! I do not understand what you are trying to tell me! Do I enter something in terminal ? I do remember that I was asked a question about comcast, however, I can't remember where this came from and how to edit it. Can you help me ?
Best Regards!
Harry

________________________________
From: Andreas Olsson <email address hidden>
To: <email address hidden>
Sent: Sunday, May 17, 2009 9:39:46 AM
Subject: [Bug 377571] Re: package postfix 2.5.5-1.1 failed to install/upgrade:

Running newaliases
newaliases: warning: valid_hostname: misplaced delimiter: linux1.hsd1.pa.comcast.net.
newaliases: fatal: file /etc/postfix/main.cf: parameter myhostname: bad parameter value: linux1.hsd1.pa.comcast.net.
dpkg: error processing postfix (--configure):
subprocess post-installation script returned error exit status 75
dpkg: dependency problems prevent configuration of bsd-mailx:
bsd-mailx depends on postfix | mail-transport-agent; however:
  Package postfix is not configured yet.
  Package mail-transport-agent is not installed.
  Package postfix which provides mail-transport-agent is not configured yet.
dpkg: error processing bsd-mailx (--configure):
dependency problems - leaving unconfigured
Processing triggers for libc6 ...
ldconfig deferred processing now taking place
Errors were encountered while processing:
postfix
bsd-mailx
Log ended: 2009-05-13 14:58:30

Perhaps the trailing dot is the problem?

** Changed in: postfix (Ubuntu)
       Status: New => Incomplete

--
package postfix 2.5.5-1.1 failed to install/upgrade:
https://bugs.launchpad.net/bugs/377571
You received this bug notification because you are a direct subscriber
of the bug.

Can you type the following commands into the terminal and give me the response? They won't change anything on your system, just list some settings.

$ postconf myhostname
$ cat /etc/hosts
$ cat /etc/hostname

$ postconf myhostname linux1.hsd1.pa.comcast.net.
$ cat/etc/hosts no such file or directory
$ cat/etc/hostname no such file or directory
these are the responses

________________________________
From: Andreas Olsson <email address hidden>
To: <email address hidden>
Sent: Monday, May 18, 2009 3:17:01 PM
Subject: [Bug 377571] Re: package postfix 2.5.5-1.1 failed to install/upgrade:

Can you type the following commands into the terminal and give me the
response? They won't change anything on your system, just list some
settings.

$ postconf myhostname
$ cat /etc/hosts
$ cat /etc/hostname

--
package postfix 2.5.5-1.1 failed to install/upgrade:
https://bugs.launchpad.net/bugs/377571
You received this bug notification because you are a direct subscriber
of the bug.

This isnt a postfix problem. It looks like you have bigger problems since you dont have an /etc/hosts or /etc/hostname.

chuck

I think this might be a vaild issue under some circumstances but there is an easy workaround. I looks like the issue with #5 is that he didn't put a space between cat and the file path. I have the same issue with a fresh install and default settings.

The issue is that for a default install, the installer grabs the full comcast domain and puts that with a trailing dot in the /etc/hosts (not sure if that's valid or not) and then by default the postfix package grabs that hostname as the mail hostname.

Here is the output for me:

gitadmin@ubuntu:~$ postconf myhostname
myhostname = ubuntu.hsd1.il.comcast.net.
gitadmin@ubuntu:~$ cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 ubuntu.hsd1.il.comcast.net. ubuntu

# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
gitadmin@ubuntu:~$ cat /etc/hostname
ubuntu

FIX:

Removing the trailing dot from the myhostname entry in /etc/postfix/main.cf fixes the issue for me.