I’ve inherited some systems that runs on the FreeBSD operating system and inside jails. Basically the services running are old versions of qmail, spamd, Dovecot, etc. None of the versions are up to date or even maintainable any more. At present we can’t move from these systems but I would at least like to be able to troubleshoot them. My question: Normally I would be able to run for example service qmail status and get some info about the top level process. How do I do this inside a jail? In the case of the qmail process I can use qmailctl but what would be the equivalent for spamd or Dovecot? Also how do you go about troubleshooting these types of services? The logs don’t really give a very good steer on what could be going wrong.

Qmail and Postfix support address extensions like username-ext1@example.com where emails will be delivered to username, if the delimiter is configured to -. Users can handle mails with .forward files in their home directory by default. (Or .qmail for Qmail.) Emails to username-ext1@example.com are handled by the .forward-ext1 file if it exists, otherwise .forward is used as fallback. For username-ext1-ext2@example.com Qmail tries .qmail-ext1-ext2, then .qmail-ext1 and finally .qmail. Postfix tries .forward-ext1-ext2 and then directly .forward without caring about .forward-ext1. **How can I get Postfix to handle multiple address extensions?** I want to catch all mails to username-ext1-*@example.com without parsing headers myself in .forward. – Did I miss something? (This would also be useful for users who want to have multiple VERP-style mailing lists with simple separate configurations.)

I am trying to install some Qt libraries like this:

sudo apt-get install libqt5webengine5  libqt5webenginewidgets5

But I keep getting such errors:

The hostname -f command returned: $1

Your system needs to have a fully qualified domain name (fqdn) in
order to install the var-qmail packages.

Installation aborted.

dpkg: error processing package qmail (--configure):
 installed qmail package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of qmail-run:
 qmail-run depends on qmail (>= 1.06-2.1); however:
  Package qmail is not configured yet.

No apport report written because the error message indicates its a followup error from a previous failure.
                          dpkg: error processing package qmail-run (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 qmail
 qmail-run
E: Sub-process /usr/bin/dpkg returned an error code (1)

How can I install these libraries? Edit:

ls: cannot access '–l': No such file or directory
qmail.list
qmail.md5sums
qmail.postinst
qmail.postrm
qmail.preinst
qmail-run.conffiles
qmail-run.list
qmail-run.md5sums
qmail-run.postinst
qmail-run.postrm
qmail-run.preinst
qmail-uids-gids.list
qmail-uids-gids.md5sums
qmail-uids-gids.postinst
qmail-uids-gids.postrm
qmail-uids-gids.preinst

The hostname -f command returned: Lenovo-V330-15IKB

You must have a fully qualified domain name (fqdn) for your system
to install the qmail and qmail-run packages.

Installation aborted.

dpkg: error processing package qmail-run (--configure):
 installed qmail-run package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 qmail-run
E: Sub-process /usr/bin/dpkg returned an error code (1)

Error on

sudo dpkg --configure -a

Setting up qmail-run (2.0.2+nmu1) ...

The hostname -f command returned: hammad-Lenovo-V330-15IKB

You must have a fully qualified domain name (fqdn) for your system
to install the qmail and qmail-run packages.

Installation aborted.

dpkg: error processing package qmail-run (--configure):
 installed qmail-run package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 qmail-run

I am in charge of maintaining a linux e-mail server running qmail on Red Hat Linux. Fairly often, I have to trace the path of some email through syslog and to be frank, this is rather tedious. Are there any desktop apps (or even command tools) that inspect the incoming and outgoing mail logs with better usability instead of clobbering bash commands together? What I have in mind is some tool that I could import a log file and it would organize all the information for me, so that I could perform some searches on it, or view the path of email messages in and out of my system. Perhaps this is lofty wishes at the moment, but I'm trying to see what my options are.

I am using qmail to send a large number of emails on behalf of many people. It varies between 400k and 600k emails per job. A php script queues up all of the messages, which takes a few hours. The messages then take about 24-48 hours to dequeue and get sent. The length of time is not a problem, but I do not like that emails are sent at odd times (like in the middle of the night, or at sunrise). **Is there a way I can tell qmail to only dequeue messages only during a certain time range?** For example, tell it to only empty the queue between 6AM and 8PM, then just let it "sleep" after 8PM until 6AM the next day to finish the queue. *Using CentOS 6.6 Final*

I've a qmail setup with sslserver being used to secure the pop connections. Normally it runs very well, however some instances of sslserver start taking 100% cpu and its child process qmail-pop3d process is seen as zombie. The process has to be killed to solve the prb. The sslserver version is 0.70. OS is CentOs 6.0 64 bit with 2.6.32-220 kernel. Any clues how I can debug this ?

I have 500k spam messages in my outgoing queue. From experience, I know this will take a long time to remove. All the tools I know of require stopping qmail to remove messages. Does anyone one know of a tool which will let me selectively delete messages from the queue without stopping mail services?