Code-blue TOOLVOX X3 Bedienungsanleitung PDF herunterladen (Seite 125)

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ToolVox® X3

Administrator Guide

Restrictions on client hostnames/addresses

Thisrestrictionappliestotheclienthostnameand/oraddress.Bydefault,Postxwillallow

connectionsfromanyhost,butyoumayaddadditionalrestrictionsusingthefollowing:reject_

unknown_client,permit_mynetworks,check_client_accessmaptype:mapname,reject_maps_rbl,

maps_rbl_reject_code,permit,reject,warn_if_reject,reject_unauth_pipelining.

Restrictions on sends in HELO commands

ThisoptionspeciesadditionalrestrictionsoninformationthatcanbesentbyclientintheHELO

andEHLOcommands.Thisoptioncorrelatestothesmtpd_helo_restrictionsdirective.Bydefault

Postxacceptsanything,andthefollowingrestrictionsmaybeadded:reject_invalid_hostname,

permit_naked_ip_address,reject_unknown_hostname,reject_non_fqdn_hostname,check_

helo_access maptype:mapname,reject_maps_rbl,reject_unknown_client,check_client_access

maptype:mapname,permit,reject,warn_if_reject,reject_unauth_pipelining.

Restrictions on sender addresses

ThisoptionrestrictswhatcanbecontainedintheMAILFROMcommandinamessage.Itmay

beusedtopreventspecicemailaddressesfromsendingmail,rejectclientswithoutaresolvable

hostname,etc.Thisoptioncorrelatestothesmtpd_sender_restrictionsdirectiveandmaycontain

anyofthefollowingrestrictions:permit_mynetworks:,reject_unknown_client,reject_maps_rbl,

reject_invalid_hostname,reject_unknown_hostname,reject_unknown_sender_domain,check_

sender_accessmaptype:mapname,check_client_accessmaptype:mapname,check_helo_access

maptype:mapname,reject_non_fqdn_hostname,reject_non_fqdn_sender,reject,permit.

Restrictions on recipient addresses

ThisparameterplacesrestrictionsontherecipientsthatcanbecontainedintheRCPTTO

commandofasentmessage.Itcanbeusedtodictatewhereemailmaybesent.Thisoption

correlatestothesmtpd_recipient_restrictions,andmaycontainanyofthefollowingrestrictions:

permit_mynetworks,reject_unknown_client,reject_maps_rbl,reject_invalid_hostname,

reject_unknown_hostname,reject_unknown_sender_domain,check_relay_domains,permit_

auth_destination,reject_unauth_pipelining,permit_mx_backup,reject_unknown_recipient,

check_recipient_access,check_client_access,check_helo_access,check_sender_access,reject_

non_fqdn_hostname,reject_non_fqdn_sender,reject_non_fqdn_recipient,reject,permit.

DNS domains for blacklist lookups

ThisoptioncongurestheoptionalblacklistDNSserversthatwillbeusedforallRBLchecksthat

havebeenspeciedinallaccessrestrictions.Itmaycontainanynumberofserversinawhitespace

separatedlist.Theseservicescanbeusedtohelppreventspam,asdiscussedearlierinthis

section,withtheRestrict ETRN command upon...parameter.Thisoptionconguresthemaps_

rbl_domainsdirectiveandisemptybydefault.

Restrict mail relaying

Thisoptionspecieswhichhosts,networks,domains,etc.,Postxwillrelayemailfor.Thisoption

correlatestotherelay_domainsdirectiveanddefaultsto$mydestination.

SMTPserverresponseonaccessmapviolation,SMTPserverresponseonRBLdomainsviolation,

SMTPserverresponseonforbiddenrelaying,SMTPserverresponseonunknownclientreject,

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