Fix Exim error-exim dead but subsys locked

Problem Statement


php mail scripts were not working in Linux VPS.

Error Message

exim dead but subsys locked

Resolution

The first thing we verified was whether exim service is working or not by issuing following command in SSH.

service exim status

We noticed that Exim service was dead and throwing following error.

exim dead but subsys locked 

We attempt to start the Exim service by issuing the following command

service exim start

We received following error while we try to start it.
Starting exim: 2016-01-13 12:55:12 Cannot open main log file "/var/log/exim_mainlog": No such file or directory: euid=0 egid=0
2016-01-13 12:55:12 cwd=/ 5 args: /usr/sbin/exim -bd -q1h -oP /var/spool/exim/exim-daemon.pid
2016-01-13 12:55:12 Cannot open main log file "/var/log/exim_mainlog": No such file or directory: euid=0 egid=0
exim: could not open panic log - aborting: see message(s) above

This error tells that necessary error log files to start Exim services were missing so we created following files manually.

/var/log/exim_mainlog
/var/log/exim_rejectlog
/var/log/exim_paniclog
/var/log/maillog
/var/log/messages
We attempted to start the Exim service and we received following error again.

exim dead but subsys locked

Upon research, we came to know that, there are mainly two reasons for the occurrence of this error.

  1. The presence of /etc/eximdisable file. To verify the existence of this file, we navigated to /etc/ directory and made sure that this file is not there.
  2. The server has necessary disk space available to start the Exim service. To verify it, we issued the following command.

    df -h 
    We noticed that customers VM was using 97% of total disk space. We asked our customers to remove unwanted data and release some disk space. Customer released some disk space and Exim service was started immediately. As soon as Exim service started, all queued emails were released.

  • 0 Users Found This Useful

Was this answer helpful?

Related Articles

Can I purchase additional RAM, Disk space and Bandwidth for VPS?

Yes, you can purchase additional RAM(Our RAM Recommendation), DiskSpace, Bandwidth and vCPU...

How to create users and groups in CentOS7?

Once the Linux system is configured, adding and removing users is one of the most basic tasks...

How to determine what is using the most disk space on my Linux server?

There are times when you receive following error while accessing the cPanel WebMail or WHM. You...

How to install Virtualmin/Webmin control panel in CentOS 7?

Before starting the installation, we need to update packages.   After Creating the VPS with...

How to install ISPConfig on Ubuntu 18.04

This article will help you on how to install ISPConfig on Ubuntu 18.04. ISPConfig is an open...