I don't have much experience on linux.
I needed to install a mail server on my ubuntu server running apache2
virtual hosts. I had to be quick so I tried this
http://flurdy.com/docs/postfix/ tutorial.
Skipped firewall; installed postfix and courier-imap. (added pop3) But since
I tried to do all as quick as possible, and since I have a very low
experience, I messed up somewhere.
I now am able to log-in and recieve through imap or pop3. Also able to send
mails to accounts of my domain.
But when I try to send a mail to remote (gmail, yahoo, example.com etc.) I
get Relay Access Denied. Many of googleing led me to
"smtpd_recipient_restrictions" I throubled much but could not solve it. And
so confused.
My goal is to have a mail server that:
- restrict users to use TSL for all (POP3/IMAP/SMTP).
- make it as hard as possible for spammers to target my domains.
But now I have a headache for more than 3 days.
Im adding the last shapes of my cf's.
Could you tell me what am I doing wrong?
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main.cf
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smtpd_banner = $myhostname ESMTP $mail_name
biff = no
append_dot_mydomain = no
delay_warning_time = 4h
unknown_local_recipient_reject_code = 450
maximal_queue_lifetime = 7d
minimal_backoff_time = 1000s
maximal_backoff_time = 8000s
readme_directory = no
smtpd_helo_required = yes
smtpd_delay_reject = yes
smtp_helo_timeout = 60s
smtpd_recipient_limit = 32
smtpd_soft_error_limit = 3
smtpd_hard_error_limit = 12
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_tls_security_level = may
smtpd_tls_security_level = may
#smtpd_tls_auth_only = no
smtp_tls_note_starttls_offer = yes
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom
#myhostname = example.com
#already done in /etc/mailname as mail.******.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = ******.com
mydestination =
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
mynetworks_style = host
masquerade_domains = mail.******.com
smtpd_helo_restrictions = permit_mynetworks, warn_if_reject
reject_non_fqdn_hostname, reject_invalid_hostname, permit
smtpd_sender_restrictions = permit_mynetworks, warn_if_reject
reject_non_fqdn_sender, reject_unknown_sender_domain,
reject_unauth_pipelining, permit
smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org,
reject_rbl_client blackholes.easynet.nl, reject_rbl_client dnsbl.njabl.org
smtpd_data_restrictions = reject_unauth_pipelining
#smtpd_recipient_restrictions = permit_sasl_authenticated,
reject_unauth_pipelining, permit_mynetworks, reject_non_fqdn_recipient,
reject_unauth_destination, permit
#smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks,
reject_non_fqdn_recipient, reject_unknown_recipient_domain,
reject_unauth_destination, permit
#smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks,
reject_non_fqdn_recipient, permit
smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination
#smtpd_recipient_restrictions = permit
disable_vrfy_command = yes
virtual_mailbox_base = /var/spool/mail/virtual
virtual_mailbox_maps = mysql:/etc/postfix/mysql_mailbox.cf
virtual_uid_maps = mysql:/etc/postfix/mysql_uid.cf
virtual_gid_maps = mysql:/etc/postfix/mysql_gid.cf
virtual_alias_maps = mysql:/etc/postfix/mysql_alias.cf
virtual_mailbox_domains = mysql:/etc/postfix/mysql_domains.cf
# this is how to connect to the domains (all virtual, but the option is
there) not used yet
# transport_maps = mysql:/etc/postfix/mysql_transport.cf
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
//main.cf
master.cf
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
smtp inet n - - - - smtpd
#submission inet n - - - - smtpd
# -o smtpd_tls_security_level=encrypt
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
# -o milter_macro_daemon_name=ORIGINATING
#smtps inet n - - - - smtpd
# -o smtpd_tls_wrappermode=yes
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
# -o milter_macro_daemon_name=ORIGINATING
#628 inet n - - - - qmqpd
pickup fifo n - - 60 1 pickup
cleanup unix n - - - 0 cleanup
qmgr fifo n - n 300 1 qmgr
#qmgr fifo n - - 300 1 oqmgr
tlsmgr unix - - - 1000? 1 tlsmgr
rewrite unix - - - - - trivial-rewrite
bounce unix - - - - 0 bounce
defer unix - - - - 0 bounce
trace unix - - - - 0 bounce
verify unix - - - - 1 verify
flush unix n - - 1000? 0 flush
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1 proxymap
smtp unix - - - - - smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay unix - - - - - smtp
-o smtp_fallback_relay=
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq unix n - - - - showq
error unix - - - - - error
retry unix - - - - - error
discard unix - - - - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - - - - lmtp
anvil unix - - - - 1 anvil
scache unix - - - - 1 scache
#
#
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
#
# See the Postfix UUCP_README file for configuration details.
#
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail
($recipient)
#
# Other external delivery methods.
#
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender
$recipient
scalemail-backend unix - n n - 2 pipe
flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store
${nexthop} ${user} ${extension}
mailman unix - n n - - pipe
flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}
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/master.cf
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--
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