I searched the forum, but without success. I have a server with mail accounts that require the passwordcontinuously, I've made some password change but some of them are
unsuccessful, always notify that the password is incorrect. I tried to reinstall the panel but it did not change anything. log mail.info does not provide information needed to understand any problem . other information I forgot to write, I tried to upgrade to version 1.4.7 or version 1.5.1 during the various steps are updated the various services (mysql, php, courier etc) at the next step are removed, I do not understand the reason
System Details
Debian GNU/Linux 9.2
PHP 7.1.10
10.1.28-MariaDB
i-MSCP 1.4.3
Courier and Postfix