Hello,

Here is my configuration:

iRedMail 1.5.2
Ubuntu 20.04LTS
MySql as DB
nginx
** iRedmail server is running on Docker **

All is working perfectly. Sending and receiving mails.

BTW, When I run the docker it runs the installation of this edition from a folder in root: 
'/iredmail'

Today I've purchased and downloaded 'iRedMail-Pro-SQL 5.1' and extracted it on the same path of the iRedMail folder.

Here is the listing of the 'Downloads' folder:

drwxr-xr-x 11 sysop sysop    4096 May  3 14:49  iRedAdmin-Pro-SQL-5.1/
-rw-rw-r--  1 sysop sysop 2023519 May  3 17:42  iRedAdmin-Pro-SQL-5.1.tar.bz2
drwxrwxr-x 10 sysop sysop    4096 Mar 16 13:12  iRedMail-1.5.2/
-rw-rw-r--  1 sysop sysop  243529 Mar 25 14:52  iRedMail-1.5.2.tar.gz

But it seems I can't install the Pro.

When I try to follow the instructions in the migrate.or.upgrade.iredadmin formal tutorial
I get this:

<<< ERROR >>> No mlmmjadmin installation found (/opt/mlmmjadmin).
<<< ERROR >>> Please follow iRedMail upgrade tutorials to the latest
<<< ERROR >>> stable release first, then come back to upgrade iRedAdmin-Pro.
<<< ERROR >>> mlmmj and mlmmjadmin was first introduced in iRedMail-0.9.8.
<<< ERROR >>> docs. iredmail. org/iredmail.releases. htm

Checked - and the /opt/ folder doesn't have a 'mlmmjadmin' in it.

What am I doing wrong ?

Jacob