if you change mysql ehcp user password after ehcp installation,

change also following files accordingly:

/var/www/vhosts/ehcp/config.php
/etc/postfix/mysql-virtual_domains.cf
/etc/postfix/mysql-virtual_forwardings.cf
/etc/postfix/mysql-virtual_mailboxes.cf
/etc/postfix/mysql-virtual_email2email.cf
/etc/postfix/mysql-virtual_mailbox_limit_maps.cf
/etc/pam.d/smtp
/etc/courier/authmysqlrc
/etc/pam.d/vsftpd

unfortunately, these are not handled by ehcp automatically, if you change mysql ehcp user password after install. These are written once at install of ehcp.

this issue will be solved in newer versions.

as ehcp usage grows, new features required like this...
tens of people downloading ehcp every day.

thank you for your patience.