==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

trying to install iredmail 0.9.8 on Ubuntu 18.04.1, and getting an error:

package dialog is not available, but is referred to by another package.
E: package 'dialog ' hos no installtion candidate
config_via_dialog.sh: line 44: dialog: commaecho $PATH|sed 's/:/ /g'nd not found
[info] exit.

what am i missing here the sources.list file?

best/