Postfix log files empty

Be sure to set the following correctly if you're behind a proxy or network address translator, and you are running a backup MX host for some other domain:. Postfix daemon processes run in the background, and log problems and normal activity to the syslog daemon.

Here are a few things that you need to be aware of:. If your machine has unusual security requirements you may want to run Postfix daemon processes inside a chroot environment. If you run Postfix on a virtual network interface, or if your machine runs other mailers on virtual interfaces, you'll have to look at the other parameters listed here as well:. The two most important files are main. Giving someone else write permission to main. Postfix configuration parameters resemble shell variables, with two important differences: the first one is that Postfix does not know about quotes like the UNIX shell does.

The Postfix configuration language uses lazy evaluation, and does not look at a parameter value until it is needed at runtime.

Postfix uses database files for access control, address rewriting and other purposes. Here is a common example of how Postfix invokes a database:.

Whenever you make a change to the main. The myorigin parameter specifies the domain that appears in mail that is posted on this machine.

For the sake of consistency between sender and recipient addresses, myorigin also specifies the domain name that is appended to an unqualified recipient address. The mydestination parameter specifies what domains this machine will deliver locally, instead of forwarding to another machine.

The default is to receive mail for the machine itself. By default, Postfix will forward mail from clients in authorized network blocks to any destination. Authorized networks are defined with the mynetworks configuration parameter.

The current default is to authorize the local machine only. This command will show you all the maillog records where there was a problem with internal delivery only. Identifying how many times the Postfix configuration has been reloaded.

You can use this filters if you want to know how many times or the moment a postfix configuration has been reloaded. This command will give a list of all records where the configuration of the main.

This list can be useful to identify the date and time the engine has reloaded a configuration either manually or automatically. This list can also be used to identify the moment a potential change to your Postfix configuration has been made. You get the same result with this command but with a numerical value. Identifying how many times Postfix has been restarted. You can use this filter if you want to know how many times and the exact moment of a Postfix restart. This line indicates that there was in fact a service interruption because Postfix was actually stopped.

The output of this command will give a list of records that shows Postfix was stopped, so the availability of the service was in fact interrupted. You can verify the exact time in between this pair of lines if you want to know how much time your mail service was down. If you need to clear the records of Postfix maillog to make some tests or just for mantainance, you can execute the following command.

This command will clear all the contents of maillog. This command can be executed without restarting Postfix. You need to know exactly which daemon you need to debug in order to get the appropiate information, once you know this you can make the proper configuation in the master.

The following is a list of recommendation about the daemons and its uses. By default, maillog rotates weekly or when a single maillog file reaches 10MB k , the one that occurs first. The first option is to change the behavior of ALL logs managed by the syslog daemon, this configuration is the first one that appears on this file and will affect not only the maillog but all of them. The first field may receive the following values: daily, weekly, monthly and yearly. The second option is to change only the configuration of the maillog without affecting the other ones.

This method is the recommended and to apply it you have to locate the section of the maillog, the following lines show the default configuration. Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Where are the postfix log files? Ask Question. Asked 8 years ago. Active 1 year, 2 months ago. Viewed k times.

Where can i see which configuration file postfix uses? Hint: I use postfix together with dovecot. I installed meta package some months ago. For more information see syslog. First some standard logfiles. Log by facility. Split it up so that it is easy to write scripts to parse these files. RickyMorse unfortunately I couldn't find anything as well. It's a real hard search.

Possibly it's really complicated because I imagine using one logging engine versus the next is integral to the functioning of the OS. What would help is if we knew the converse of Journalctl, like is it SystemD logging? You made my day! Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Helping communities build their own LTE networks.

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