Cool, thanks for your sharing.
May i copy your tutorial to our wiki site as a backup copy?
P.S.
1) I linked your tutorial in the wiki tutorial (LDAP).
2) There's a minor typo error:
Wynni wrote:The password will be in the “RedMail tips for mail server administrator” mail. Check also the technical documentation for SOGO
The file name is iRedMail.tips. 
3) Step 12 in your tutorial is not needed anymore with the latest iRedAdmin which will be shipped in iRedMail-0.8.0. What you need to do is just update 'SQL_DEFAULT_PASSWD_SCHEME' to 'PLAIN-MD5' (it's a dash, not underscore) in libs/settings.py.