what worked for me is create another nginx block or another virtual host on apache. then create a letsencrypt subdomain autodiscover.mydomain.com
then on the autodiscover config
What i cannot get it working is for the autodiscover to only use username instead of the whole email. I tried use full email as false but no luck but besides that everything is great

// Replace zpush.example.com with your z-push's host name and uncomment the line below. define('ZPUSH_HOST', 'mail.mydomain.com'); // Defines the default time zone, change e.g. to "Europe/London" if necessary define('TIMEZONE', 'America/Bogota'); // Defines the base path on the server define('BASE_PATH', dirname($_SERVER['SCRIPT_FILENAME']). '/'); /* * Whether to use the complete email address as a login name * (e.g. user@company.com) or the username only (user). * Possible values: * false - use the username only (default). * true - use the complete email address. */ define('USE_FULLEMAIL_FOR_LOGIN', false); /* * AutoDiscover requires the username to match either the email address * or the local part of the email address. * This is not always possible as the username might have a different * schema than email address. Configure this parameter to match your * username settings. * @see https://wiki.z-hub.io/display/ZP/Configuring+Z-Push+Autodiscover#ConfiguringZ-PushAutodiscover-Configuration * @see https://jira.z-hub.io/browse/ZP-1209 * * Possible values: * AUTODISCOVER_LOGIN_EMAIL - uses the email address as provided when setting up the account * AUTODISCOVER_LOGIN_NO_DOT - removes the '.' from email address: * email: first.last@domain.com -> resulting username: firstlast * AUTODISCOVER_LOGIN_F_NO_DOT_LAST - cuts the first part before '.' after the first letter and * removes the '.' from email address: * email: first.last@domain.com -> resulting username: flast * AUTODISCOVER_LOGIN_F_DOT_LAST - cuts the part before '.' after the first letter and * leaves the part after '.' as is: * email: first.last@domain.com -> resulting username: f.last */ define('AUTODISCOVER_LOGIN_TYPE', AUTODISCOVER_LOGIN_EMAIL); /********************************************************************************** * Logging settings * Possible LOGLEVEL and LOGUSERLEVEL values are: * LOGLEVEL_OFF - no logging * LOGLEVEL_FATAL - log only critical errors * LOGLEVEL_ERROR - logs events which might require corrective actions * LOGLEVEL_WARN - might lead to an error or require corrective actions in the future * LOGLEVEL_INFO - usually completed actions * LOGLEVEL_DEBUG - debugging information, typically only meaningful to developers * LOGLEVEL_WBXML - also prints the WBXML sent to/from the device * LOGLEVEL_DEVICEID - also prints the device id for every log entry * LOGLEVEL_WBXMLSTACK - also prints the contents of WBXML stack * * The verbosity increases from top to bottom. More verbose levels include less verbose * ones, e.g. setting to LOGLEVEL_DEBUG will also output LOGLEVEL_FATAL, LOGLEVEL_ERROR, * LOGLEVEL_WARN and LOGLEVEL_INFO level entries. */ define('LOGBACKEND', 'filelog'); define('LOGFILEDIR', '/var/log/z-push/'); define('LOGFILE', LOGFILEDIR . 'autodiscover.log'); define('LOGERRORFILE', LOGFILEDIR . 'autodiscover-error.log'); define('LOGLEVEL', LOGLEVEL_INFO); define('LOGUSERLEVEL', LOGLEVEL); $specialLogUsers = array(); // Syslog settings // false will log to local syslog, otherwise put the remote syslog IP here define('LOG_SYSLOG_HOST', false); // Syslog port define('LOG_SYSLOG_PORT', 514); // Program showed in the syslog. Useful if you have more than one instance login to the same syslog define('LOG_SYSLOG_PROGRAM', 'z-push-autodiscover'); // Syslog facility - use LOG_USER when running on Windows define('LOG_SYSLOG_FACILITY', LOG_LOCAL0); /********************************************************************************** * Backend settings */ // the backend data provider define('BACKEND_PROVIDER', 'BackendCombined');

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