PostFix Mail Blocked

Reports text lines on blocked mail transfer attempts, for example, for ISP Antispam policies due IP restriction or other mechanism. If you set a string inverse threshold here you can get events on mail blocked. grep_log plugin comes with the agent, is a standard...

PostFix Queue

Return items pending in the DEFER queue. Module data module_begin  module_name Queue_Pending  module_type generic_data  module_exec postqueue -p | tail -1 | grep -o "[0-9]* Request" | awk '{ print $1 }' ...