thank you for your answer

i see that but i have installed 2 iredmail in 2 separated server , there is an attached storege ( NAS)
and email directory path is located in that storage and both server can access to it , so i need to make change for using one mysql for both servers

so if i want to use that help so i need to clear all database table , i need to change iredmail config files for connection to that mysql server

Hello again and thanks for your answer

there is replication on mysql , if any of mysql was down we can use another one

thanks for your complete answer

so i need to search about that packages config files

Hello Dear Zhang

thank you for your good answer

can you please tell me what is the password encryption stored in database ( vmail-> mailbox->password )

i want to make an php script for make and change password
i read that file " iredutils.py " and i undrestand password makes with md5 encryption by defult  ( mybe my think is wrong )  but i cant make an password with md5 in php similar your password

im confused

sure i see that is salted md5 ( with 8 charterer random ) but what is the random char in that string ? for example that is salted md5 = > $1$HV98gvCH$Hr1/Zy5cTDrD0d9MD/TQY. makes from iredadmin
and  that string must be md5 . salted string or salted string . md5 right ?

other ways
how can i change it to plain MD5 ? just from iredadmin setting ? or i need to change something in postfix and dovecot ?

hello Dear Zhang

i have resolved that problem , i wrote an php class for making that password

that is not just simple md5 it's unix_md5_crypt
unix_md5_crypt() provides a crypt()-compatible interface to the rather new MD5-based crypt() function found in modern operating systems.
It's based on the implementation found on FreeBSD 2.2.[56]-RELEASE

salt is random 8 character and start after $1$ adn end befor $
 
now there is another problem i have more that 5 days im confused

( i found a bug in iredadmin when you trying to install iredmail with remote mysql with that article http://www.iredmail.org/wiki/index.php? … sql.server
roundcube dose not install correctly and roundcube username password and table dose not makes in remote mysql ) anyway i have resolved that problem

all thing is good i can login with roundcube and send an receive email
i have another email interface like roundcube that script using imap  for send and receive email
when i try to config that script from another server to connect to iredmail server and using imap face me error and a can see that error ,log in dovecot

Mar 09 13:24:48 auth-worker(31424): Info: mysql(192.168.1.10): Connected to database vmail
Mar 09 13:24:50 imap-login: Info: Disconnected (auth failed, 1 attempts in 2 secs): user=<test@mydomain.com>, method=PLAIN, rip=192.168.1.21, lip=192.168.1.11, TLS, session=<z6qPwy/0IwCaL6AL>
Mar 09 13:24:59 imap-login: Info: Disconnected (auth failed, 1 attempts in 6 secs): user=<test@mydomain.com>, method=PLAIN, rip=192.168.1.21, lip=192.168.1.11, TLS, session=<TeHawy/0PACaL6AL>

but roundcube can work correctly ! roundcube installed on that iredmail server but my other script is installed on another server that can access to iredmail server over localnetwork