exim4-dbg software package provides debugging symbols for the Exim MTA (utilities), you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install exim4-dbg
exim4-dbg is installed in your system.
Make ensure the exim4-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep exim4-dbg *
You will get with exim4-dbg package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | |
| Package | exim4-dbg |
| Version | 4.82-3ubuntu2.1 [amd64, i386], |
| Description | debugging symbols for the Exim MTA (utilities) |
| Sub Section |