Start/notes.ini Parameters/AMgr_DisableMailLookup

AMgr_DisableMailLookup

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Parameter: AMgr_DisableMailLookup
Short description: Disables the mail-related lookups when evaluating new mail trigger agents – a noticeable performance boost on large mail servers.

Profile

Parameter
AMgr_DisableMailLookup
Category
Startup / Tasks
Component
Server
Available since
9.0.1
Supported versions
9.0.1, 10.0, 11.0, 12.0, 14.0, 14.5, 14.5.1
GUI equivalent
notes.ini only (no GUI)
Possible values
0 = lookups active (default), 1 = disabled

Description

Whenever mail arrives, the Agent Manager checks whether a new mail trigger agent exists, performing several directory lookups in the process. On servers with high mail volume and no corresponding agents, this generates pointless load. AMgr_DisableMailLookup=1 turns these lookups off.
Only meaningful if no mailfiles on this server have active new mail agents.

Example configuration

AMgr_DisableMailLookup=1

Notes & pitfalls

  • Before activating, check: tell amgr show schedule shows active agents.
  • Does not affect scheduled or on-save agents.
  • Complements AMgr_DisableProcessSecurity, Debug_AMgr=2.
  • Always recommended on pure mail-routing hubs (no inbox storage).
  • The change takes effect after a restart of the Agent Manager.