exim4-dbg software package provides debugging symbols for the Exim MTA (utilities), you can install in your Debian 7 (Wheezy) 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 | Debian 7 wheezy |
| Section | Debug packages |
| Package | exim4-dbg |
| Version | 4.80-7+deb7u3 |
| Description | debugging symbols for the Exim MTA (utilities) |
| Sub Section | debug |