Code-blue TOOLVOX X3 Manual de usuario descargar pdf (Pagina 126)

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page 126 of 132

ToolVox® X3

Administrator Guide

SMTPserverresponseoninvalidhostnamereject,SMTPserverresponseonunknowndomain

reject,SMTPserverresponseonunknownhostnamereject

Theseoptionsconguretheerrorresultcodethatwillbesenttotheclientwhenanyofthespecied

restrictionsareapplied.Theseerrorshavesensibledefaultvaluesandgenerallyshouldnotneedto

bechanged.ConsultwithRFC822ifyouwishtounderstandmoreabouttheSMTPerrorcodesor

haveareasontochangeanyofthesevalues.

SMTP Client Options

TheSMTPclientoptionscongureshowPostxwillbehavewhendealingwithothermailservers

asaclient,i.e.,whensendingmailonbehalfofauser.Thisportionofthecongurationprimarily

dictateshowtheserverwillrespondtocertainerrorconditions.

Action when listed as best MX server

AsdiscussedintheBINDchapter,amailserverperformsanameserverquerytondtheMX,or

mailserver,recordforthedestinationdomain.Ifthisrecordindicatesthatthelocalserveristhe

servertowhichmailshouldbesent,itcanrespondinacoupleofways.Thedefaultistobouncethe

messagewithanerrorindicatingamailloop.Iftheeldisselectedandlocalisentered,themailwill

bedirectedtothelocaldeliveryagentinsteadofbouncing.Thisoptioncorrelatestothebest_mx_

transportdirective.

Hosts/domains to hand off mail to on invalid destination

Bydefault,mailthatcannotbedeliveredbecausethedestinationisinvalidwillbebouncedwithan

appropriateerrormessage.However,itispossibletocongurePostxtohandoffemailtoanother

serverinstead.Thisoptioncorrelatestothefallback_relaydirective.

Ignore MX lookup error

IfanameserverqueryfailstoprovideanMXrecord,theserverdefaultstodeferringthemailand

tryingagainlater.IfYesisselected,anArecordquerywillbedoneandanattempttodelivertothe

resultingaddresswillbemade.Thisoptioncorrelatestotheignore_mx_lookup_errordirective.

Skip 4xx greeting

Ifaremoteserverrespondstoaconnectionwitha4XXstatuscode,Postxwill,bydefault,select

thenextavailablemailexchangerspeciedbytheMXrecords.IfsettoNo,maildeliverywillbe

deferredaftertherstmaildeliveryattemptandanotherattemptwillbemadelater.Thisoption

correlatestothesmtp_skip_4xx_greetingdirective.

Skip wait for the QUIT command

ThisoptioncongureswhetherPostxwillwaitforthereceivingmailservertorespondtotheQUIT

command.Thisoptioncorrelatestothesmtp_skip_quit_responsedirectiveanddefaultstono.

Max number of parallel deliveries to the same destination

ThisoptionspeciesthemaximumnumberofdeliveriesthatPostxwillperformtothesame

destinationsimultaneously.Thisoptioncorrelatestothesmtp_destination_concurrency_limit

directiveanddefaultstothesystem-widelimitforparelleldeliveriesconguredintheDelivery

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