Postfix where is log

So, there must be some errors, But where to see the error message? Have you already stumbled upon this comprehensive Postfix Debugging Howto? There's the following notice concerning logging:. Postfix logs all failed and successful deliveries to a logfile. I was not able to locate logs anywhere and I was running Ubuntu The following helped me to resolve it:. 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 to find the error messages of Postfix Ask Question. Asked 10 years ago. Active 3 months ago. The cat command can be used to view the metadata. Depending on the Linux distro you are using, one of the following commands will be used to view the mail log:.

The -f option lets you view the mail log in real time, which can be very helpful in identifying the exact command that is causing some error in the log. In this example, this means that mail. The ISP may refuse to deliver the mail. Perhaps the ISP spam filter has filter the email. For this error, follow the article on Host or domain name not found in the Postfix mail logs.

Run the postfix check command. It should output anything that you might have done wrong in a config file. To see all of your configs, type postconf. To see how you differ from the defaults, try postconf -n. To check if SMTP is working from the command line Linux , is one critical aspect to be considered while setting up an email server. Because most log files are recorded in plain text, the use of any text editor will do just fine to open it. You almost certainly have an app already built-in or installed on your system for opening LOG files.

Open a terminal window and issue the command journalctl. You should see all output from the systemd logs Figure A. The output of the journalctl command.