I'm still getting this with 5.30
PEAR_Exception: Failed to write to socket: unknown error in /var/www/sln/wordpress/wp-content/plugins/civicrm/civicrm/vendor/pear/pear-core-minimal/src/PEAR.php on line 922| |---| |- PEAR_Error: Failed to write to socket: unknown error in unknown on line unknown|
|/var/www/sln/wordpress/wp-content/plugins/civicrm/civicrm/vendor/pear/pear-cor in /var/www/sln/wordpress/wp-content/plugins/civicrm/civicrm/CRM/Core/Error.php on line 943| |---|
It occurs when sending mailings.
Is there a good way to debug this?
WordPress 5.5.1 CentOS 7 PHP 7.4.11