Still getting problems on Postfix and "com.com"

Virtualmin
1

Still getting problems on Postfix and "com.com"

These are some log entries for today:

Apr 9 02:02:30 heavyhoster postfix/qmgr[15600]: A46427AE36D: to=<guru54gt5@com.com>, relay=none, delay=230024, delays=229991/33/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to com.com[216.239.113.101]: No route to host)
Apr 9 02:02:30 heavyhoster postfix/qmgr[15600]: 9C3097AE240: to=<root@com.com>, relay=none, delay=385992, delays=385959/33/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to com.com[216.239.113.101]: No route to host)
Apr 9 02:02:30 heavyhoster postfix/qmgr[15600]: 988047AE35C: to=<guru54gt5@com.com>, relay=none, delay=233025, delays=232992/33/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to com.com[216.239.113.101]: No route to host)
Apr 9 02:02:30 heavyhoster postfix/qmgr[15600]: 94F5F7AE257: to=<john.intaccs@com.com>, orig_to=<john@intaccs.com>, relay=none, delay=274521, delays=274488/33/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to com.com[216.239.113.101]: No route to host)
Apr 9 02:02:30 heavyhoster postfix/qmgr[15600]: 9DBB67AE36C: to=<guru54gt5@com.com>, relay=none, delay=230024, delays=229991/33/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to com.com[216.239.113.101]: No route to host)
Apr 9 02:02:30 heavyhoster postfix/qmgr[15600]: 92A017AE256: to=<root@com.com>, relay=none, delay=277992, delays=277959/33/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to com.com[216.239.113.101]: No route to host)
Apr 9 02:02:30 heavyhoster postfix/qmgr[15600]: 910BD7AE24B: to=<root@com.com>, relay=none, delay=321986, delays=321953/33/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to com.com[216.239.113.101]: No route to host)
Apr 9 02:02:30 heavyhoster postfix/qmgr[15600]: 93C3E7AE2BF: to=<john.intaccs@com.com>, orig_to=<john@intaccs.com>, relay=none, delay=239248, delays=239214/33/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to com.com[216.239.113.101]: No route to host)
Apr 9 02:02:30 heavyhoster postfix/qmgr[15600]: 96A777AE32C: to=<root@com.com>, relay=none, delay=237964, delays=237931/33/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to com.com[216.239.113.101]: No route to host)

As you can see, emeil is just not getting through because of some
incorrect mapping somewhere.

I thought I solved this by commenting out
the "myorigin = $mydomain" in my
etc/postfix/main.cf file.

but it is happening again today.
( and the main.cf file is the same )

What can this be caused by ?

2

Hmm, what is the output of the command "postconf -n"?

Also, does this happen for all emails, or just some of them? And if it’s just some – are you able to reproduce the case where it happens?

Thanks,
-Eric

3

The problem appears to to be affecting all
virtual servers.

Here is the result from postconf -n

> postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
home_mailbox = Maildir/
html_directory = no
mailbox_command = /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = $myhostname, localhost.$mydomain, localhost, rm-1003-06
newaliases_path = /usr/bin/newaliases.postfix
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
sample_directory = /usr/share/doc/postfix-2.3.3/samples
sender_bcc_maps = hash:/etc/postfix/bcc
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
unknown_local_recipient_reject_code = 550
virtual_alias_maps = hash:/etc/postfix/virtual

4

This might be useful as well:

> postconf | grep mydomain
append_dot_mydomain = yes
mydestination = $myhostname, localhost.$mydomain, localhost, rm-1003-06
mydomain = heavyhoster.com

5

Alright, I don’t see anything glaring there.

Would you mind if I logged into your system to take a look?

You can either use the Support Module to enable remote access:

http://www.virtualmin.com/documentation/id,support_requests_and_remote_login_access/

Or just email your login details to eric@virtualmin.com – be sure to include a link to this forum post in the message body.

I should have been in bed quite awhile ago, so I won’t get around to this until tomorrow… but hopefully I’ll see what’s going on at that point :slight_smile:
-Eric

6

What is the system hostname?

hostname -f

7

Also the virtual map file might be botched due to earlier misconfiguration.

What does one of the problem users look like in /etc/postfix/virtual?

8

Have Granted Remote Login Access

I hope you can route out the problem.

Thanks

9

Okay, I notice there is a lot of undeliverable messages caught up in the mail queue. I got rid of the ones trying to deliver to "com.com".

I also noticed a lot of these were coming from cron – I restarted cron, and after that, had it send several messages to “root”, my email address, and such, and it’s not acting up now.

In fact, one of the scripts where this happened in the past is the Clam update – I had cron re-run that, and it worked properly.

So, let’s see if that works now.
-Eric

10

Thanks for that.

To save me troubling you in the future,
where do I look to see things that are
"caught up in the mail queue" ?

And how do I delete them.

  1. Where do I restart cron from ?

  2. "I had cron re-run that"
    How ? was that a command at the # promt ?

Thanks

11

Howdy,

You can see what’s in the mail queue by typing “mailq”. Deleting them is a bit trickier – you can do this on the command line, but it’s probably safer to use the interface in Virtualmin, going into Webmin -> Servers -> Postfix -> Mail Queue.

Regarding cron, I used "crontab -e" and just manually added a test entry that generated some silly output and emailed it to someone (I often just cat /etc/fstab for things like that).

Again though, you could use Virtualmin to add those entries for you.
-Eric

12

Thanks for explaining.

I guess these are unix commands that you use ?

Am I supposed to learn unix in order to
run the server "properly" ?

13

Yeah, those were commands I ran on the Linux command line.

Are you supposed to learn Linux/UNIX in order to run the server properly?

Well, there’s no substitute for knowing what’s going on :slight_smile:

That said, Virtualmin tries to handle a lot of things for you, and everything I did from the command line is available within Virtualmin as well.

So yeah, I’d certainly recommend learning what you can about using Linux as a server; but Webmin/Virtualmin also helps you ease your way into that.
-Eric

14

There is also a Mail Queue page in the Postfix module.