When I check my Postfix mail queue, I am always noticing a strange
entry that sits there until I manually remove it. I really don't
understand why it is even routed into my Postfix server to begin with
as the recipient and domain don't match anything my server handles.
The senders address looks to be spam so through the times, its never
the same sender however the recipient address is always the same. Can
someone please tell me how and or why this message gets routed to my
Postfix mail server & if there is a logical way to stop / block this
from happening. Below I am adding the queue entry as well as the
output from 'postconf -n'.
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
283B71FA4CFB 5734 Wed Feb 25 14:40:28 ztul.f...@thestampcatalogue.com
(connect to vmx.atpco.com[206.181.245.168]:25: Connection timed out)
christine.a.edg...@mco.com
**My mail server is not 'mco.com' nor does it handle any replay for
such a domain. I just don't understand why these messages for the same
recipient always end up in my Postfix queue.**
mail:/home/mlo# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
home_mailbox = mail/
inet_interfaces = all
mailbox_size_limit = 0
message_size_limit = 20480000
mime_header_checks = regexp:/etc/postfix/mime_header_checks
mydestination = $myhostname, $mydomain, mail.$mydomain
myhostname = mail.example.com
mynetworks = $config_directory/mynetworks
myorigin = example.com
readme_directory = no
recipient_delimiter = +
relayhost =
smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name
smtpd_recipient_restrictions = permit_mynetworks,
permit_sasl_authenticated, reject_unauth_destination,
reject_non_fqdn_sender, reject_non_fqdn_recipient,
reject_unlisted_recipient, reject_unlisted_sender,
reject_invalid_hostname, reject_non_fqdn_hostname,
reject_rbl_client zen.spamhaus.org, reject_rbl_client
bl.spamcop.net, reject_rbl_client safe.dnsbl.sorbs.net,
reject_invalid_hostname, reject_non_fqdn_hostname
smtpd_sender_restrictions = hash:/etc/postfix/access
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache
