Hello,
In my setup, I’m using the greylisting policy. Now, a spammer tries to send
mail to a nonexistent address. But he still gets the greylisting temp failure
sent:
Nov 21 16:35:42 vanroodewierda.rna.nl postfix/smtpd[21832]: connect from
unknown[186.1.16.66]
Nov 21 16:35:43 vanroodewierda /usr/libexec/postfix/greylist.pl[21841]:
Temporary message rejection to: <g.c.th.wierd...@rna.nl> from:
<brock.h...@toyotalibya.ly> sent from: [186.1.16.66] for: 60 seconds due to
greylisting
Nov 21 16:35:43 vanroodewierda.rna.nl postfix/smtpd[21832]: NOQUEUE: reject:
RCPT from unknown[186.1.16.66]: 450 4.7.1 <g.c.th.wierd...@rna.nl>: Recipient
address rejected: Service is unavailable; from=<brock.h...@toyotalibya.ly>
to=<g.c.th.wierd...@rna.nl> proto=ESMTP helo=<chinandega1.casacross.com.ni>
Nov 21 16:35:43 vanroodewierda.rna.nl postfix/smtpd[21832]: disconnect from
unknown[186.1.16.66]
rna.nl is in $mydestinations (it is $mydomain), g.c.th.wierdadd does not exist
(is not a valid user or alias or virtual_user).
Config
smtpd_helo_restrictions =
permit_mynetworks
reject_non_fqdn_helo_hostname
reject_invalid_helo_hostname
permit
smtpd_client_restrictions =
permit_mynetworks
permit_sasl_authenticated
check_client_access
regexp:/Library/Server/Mail/Config/postfix/rna_rbl_whitelist_clients
reject_rbl_client zen.spamhaus.org
permit
smtpd_recipient_restrictions =
permit_sasl_authenticated
permit_mynetworks
reject_unauth_destination
reject_unknown_recipient_domain
reject_unverified_recipient
check_client_access
regexp:/Library/Server/Mail/Config/postfix/rna_policy_whitelist_clients
check_sender_access
regexp:/Library/Server/Mail/Config/postfix/rna_policy_whitelist_senders
check_policy_service unix:private/policy
permit
Question: why does this message end up in greylisting while I have
reject_unverified_recipient set?
Is this potentially an (unexpected) result of smtpd_delay_reject = yes?
Thanks,
G
