Code-blue TOOLVOX X3 Instrukcja Użytkownika Pobierz pdf (Strona 112)

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page 112 of 132

ToolVox® X3

Administrator Guide

impactsCanonicalMapping,RelocatedMappingandVirtualDomains.

Postﬁx support programs and daemons dir

ThisoptionspeciesthedirectorywherePostxwilllookforitsvarioussupportprogramsand

daemons.Thedirectoryshouldbeownedbyroot.Thisoptioncorrelatestotheprogram_directory

directiveanddefaultsvarydependingoninstallationmethodandOSvariant.OnmanyLinux

systemsthiswillbe/usr/libexec/postx.

Relocated mapping lookup tables

Postxcanprovidearelocationnoticeinresponsetomessagessenttouserswhonolongerreceive

mailfromthisserver.Ifenabled,thisoptionspeciesthelocationofthelecontainingatableof

contactinformationforuserswhonolongerexistonthissystem.Bydefault,thisfeatureisdisabled.

Thisoptioncorrelatestotherelocated_mapsdirective.Ifenabled,areasonablechoiceforthis

optionmightbe/etc/postx/relocated.

Disable kernel ﬁle lock on mailboxes

OnSunworkstations,kernellelockscancauseproblemsbecausethemailtoolprogramholds

anexclusivelockwheneveritswindowisopen.UsersofotherOSvariants,orSunsystemswhere

noSunmailsoftwareisinuse,mayignorethisoption.Thisoptioncorrelatestothesun_mailtool_

compatibilitydirectiveanddefaultstoNo.

Max time to send a trigger to a daemon

ThisoptionspeciesthemaximumamountoftimeallowedtosendatriggertoaPostxdaemon.

Thislimithelpspreventprogramsfromgettinghungupwhenthemailsystemisunderanextremely

heavyload.Thisoptioncorrelatestotheopts_trigger_timeoutdirectiveanddefaultsto10seconds.

Address Rewriting and Masquerading

Postxoffersarelativelyeasytouseandexibleaddressrewritingsystem,allowingittoactasa

mailgatewayforalargenetworkorasagatewaybetweenlegacymailsystemsandtheInternetat

large.

Note

 TheoptionsonthispagearealsodiscussedonthePostxConguration-Address

ManipulationpageatthePostxhomepage.Itisworthreadingifadvancedaddress

 rewritingisrequiredinyourmailsystem.

Rewrite “user%domain” to “user@domain”

Thisoptionisusefulforsomelegacysystemsthatusedstrangeaddresstrickery,suchas

user%domain@otherdomain.Itisnotgenerallyusefulinmodernenvironments,butitisnotharmful

soitusuallydefaultstoYes.Thisoptioncorrelatestotheallow_percent_hackdirective.

Rewrite “user” to “user@$mydomain”

ThisoptioncongureshowPostxwillhandleanaddressthathasnodomainnameinthe

destination.Ifenabled,itwillappendthevalueof$mydomaintotheaddress.Thisoptioncorrelates

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