Hello all,
I have a server running Postfix 2.5.1 on Ubuntu LTS. Over the years I have run
many Postfix servers but this is the first time I have a problem that I just
can't seem to find much information about.
Every now and then in the logs I see a message such as this:
Feb 13 14:37:37 lnxsrv01 postfix/local[19279]: 6A861302508:
to=<:blackhole:@lxxxxx.xxxxx.com>, orig_to=<tanzeel...@xxxxx.com>, relay=local,
delay=0.49, delays=0.23/0.18/0/0.08, dsn=5.1.1, status=bounced (unknown user:
":blackhole:")
In this case it is spam that has been rejected but in almost 8 years of using
Postfix I have never seen this before.
Here is the output from postconf -n
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
broken_sasl_auth_clients = yes
config_directory = /etc/postfix
home_mailbox = Maildir/
mailbox_command = /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME
mailbox_size_limit = 0
mydestination = xxxxxxx.xxxxxxxxxx.com, localhost.xxxxxxxxxx.com, , localhost
myhostname = xxxxxx.xxxxxxxxxx.com
myorigin = /etc/mailname
readme_directory = no
recipient_delimiter = +
sender_bcc_maps = hash:/etc/postfix/bcc
smtp_tls_note_starttls_offer = yes
smtp_tls_security_level = may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated
reject_rbl_client zen.spamhaus.org reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_tls_CAfile = /mailcert/ca-bundle.cer
smtpd_tls_auth_only = no
smtpd_tls_cert_file = /mailcert/cert
smtpd_tls_key_file = /mailcert/ssl.key
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_security_level = may
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
tls_random_source = dev:/dev/urandom
virtual_alias_maps = hash:/etc/postfix/virtual
Any assistance greatfuly appreciated
-Frog.
