Sending as Alias

==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.2
- Linux/BSD distribution name and version: debian 7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx):Apache
- Manage mail accounts with iRedAdmin-Pro? yes
- Related log if you're reporting an issue:
====

Is this the preferred way to do send as alias:
http://www.iredmail.org/forum/topic3093 … oblem.html

Could this be implemented in iRedAdmin-Pro?