Start/notes.ini Parameters/Log_MailRouting

Log_MailRouting

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Parameter: Log_MailRouting
Short description: Mail routing verbosity: controls how detailed router events are written to log.nsf / console.

Profile

Parameter
Log_MailRouting
Category
Mail / Router
Component
Server
Available since
R5
Supported versions
9.0.1, 10.0, 11.0, 12.0, 14.0, 14.5
GUI equivalent
Configuration document (Router/SMTP → Logging)
Possible values
10 = minimal, 20 = normal (default), 30 = informational, 40 = verbose / debug

Description

Log_MailRouting regulates the level of detail of the router log messages. Level 10 is minimal (critical errors only), 20 is the HCL default normal (errors plus summary statistics per run), 30 is informational (every single delivery with recipient and server hop), 40 is verbose / debug including internal state transitions.
The HCL default is 20. During acute issues, raise it briefly to 30 or 40.

Example configuration

; Default: 20 (normal)
Log_MailRouting=20

Notes & pitfalls

  • Level 40 produces a lot of output – enable only temporarily.
  • The Configuration document setting overrides this notes.ini.
  • Pairs with Log_Connections, Log_Tasks, and Console_Log_Enabled.
  • Adjust the log.nsf retention (via Log=...) accordingly.
  • The change takes effect after tell router quit / load router.