[Postfixbuch-users] Absender prüfen

[usenet at deiszner.de]

Hallo,

wie kann ich verhindern, dass ein z.B. über pop-bef-smtp 'authentifizierter' Nutzer unter einer anderen als seiner Mailadresse mails
versenden kann?

Es hat was mit den sender_restrictions zu tun - aber was ?
Die /etc/postfix/access Table ist übrigens immer noch jungfräulich leer

Hier meine main.cf:


smtpd_sender_restrictions = hash:/etc/postfix/access, reject_unknown_sender_domain
smtpd_helo_required = yes
smtpd_helo_restrictions =
strict_rfc821_envelopes = no
header_checks = pcre:/etc/postfix/header_checks
body_checks = pcre:/etc/postfix/body_checks
mime_header_checks = regexp:/etc/postfix/mime_header_checks

smtpd_recipient_restrictions = permit_mynetworks,
check_client_access hash:/etc/postfix/pop-before-smtp,
reject_unauth_destination,
reject_rbl_client bl.spamcop.net,
reject_rbl_client list.dsbl.org,
reject_rbl_client ipwhois.rfc-ignorant.org,
reject_rbl_client blackholes.mail-abuse.org,
reject_rhsbl_sender dsn.rfc-ignorant.org,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client opm.blitzed.org,
reject_rbl_client sbl.spamhaus.org,
reject_rbl_client relays.ordb.org,
reject_rbl_client sbl-xbl.spamhaus.org,
reject_rbl_client blacklist.spambag.org,
reject_rhsbl_client blackhole.securitysage.com,
reject_rhsbl_sender blackhole.securitysage.com,
reject_rbl_client dnsbl.njabl.org,
reject_rbl_client psbl.surriel.com,
reject_rbl_client ipwhois.rfc-ignorant.org,
check_client_access hash:/etc/postfix/forbidden.clients


smtpd_client_restrictions =
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mailbox_size_limit = 51200000
message_size_limit = 50240000
content_filter = smtp:[127.0.0.1]:10024