Receiving emails on CentOS 5, Postfix
Here's the problem : Our server (CentOS 5, Postfix) can't receive mails, bat can send.
Running tcpdump port 25 and sending an email from gmail shows that there are incoming request from gmail
But when i run netstat -nltp il shows that there are no processes listenning on port 25,
Here is the output of netstat -nltp :
tcp 0 0 0.0.0.0:993 0.0.0.0:* LISTEN 17434/couriertcpd
tcp 0 0 0.0.0.0:995 0.0.0.0:* LISTEN 17451/couriertcpd
tcp 0 0 127.0.0.1:10025 0.0.0.0:* LISTEN 28215/master
tcp 0 0 127.0.0.1:10026 0.0.0.0:* LISTEN 28215/master
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 6151/mysqld
tcp 0 0 0.0.0.0:106 0.0.0.0:* LISTEN 2147/xinetd
tcp 0 0 127.0.0.1:10027 0.0.0.0:* LISTEN 28215/master
tcp 0 0 0.0.0.0:110 0.0.0.0:* LISTEN 17442/couriertcpd
tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 17424/couriertcpd
tcp 0 0 0.0.0.0:8880 0.0.0.0:* LISTEN 32353/sw-cp-serverd
tcp 0 0 127.0.0.1:10001 0.0.0.0:* LISTEN 32353/sw-cp-serverd
tcp 0 0 **.***.**.***:53 0.0.0.0:* LISTEN 2292/named
tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN 2292/named
tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 2147/xinetd
tcp 0 0 0.0.0.0:2006 0.0.0.0:* LISTEN 32353/sw-cp-serverd
tcp 0 0 127.0.0.1:5432 0.0.0.0:* LISTEN 2488/postmaster
tcp 0 0 127.0.0.1:953 0.0.0.0:* LISTEN 2292/named
tcp 0 0 0.0.0.0:8443 0.0.0.0:* LISTEN 32353/sw-cp-serverd
tcp 0 0 :::80 :::* LISTEN 18594/httpd
tcp 0 0 :::22 :::* LISTEN 2135/sshd
tcp 0 0 :::443 :::* LISTEN 18594/httpd
And also the output of telnet 127.0.0.1 25 :
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
Do i need to make some portforwarding?
EDIT : Here is main.cf
queue_directory = /var/spool/postfix
daemon_directory = /usr/libexec/postfix
mail_owner = postfix
inet_interfaces = all
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
unknown_local_recipient_reject_code = 550
alias_maps = hash:/etc/aliases, hash:/var/spool/postfix/plesk/aliases
alias_database = hash:/etc/aliases
debug_peer_level = 2
debugger_command =
PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
xxgdb $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail.postfix
newaliases_path = /usr/bin/newaliases.postfix
mailq_path = /usr/bin/mailq.postfix
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/postfix-2.3.3/samples
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
virtual_mailbox_domains = $virtual_mailbox_maps, hash:/var/spool/postfix/plesk/virtual_domains
virtual_alias_maps = $virtual_maps, hash:/var/spool/postfix/plesk/virtual
virtual_mailbox_maps = hash:/var/spool/postfix/plesk/vmailbox
transport_maps = hash:/var/spool/postfix/plesk/transport
smtpd_tls_cert_file = /etc/postfix/postfix_default.pem
smtpd_tls_key_file = $smtpd_tls_cert_file
smtpd_tls_security_level = may
smtpd_use_tls = yes
smtp_tls_security_level = may
smtp_use_tls = no
mynetworks = 127.0.0.0/8, **.***.**.***/31
smtpd_sender_restrictions = check_sender_access hash:/var/spool/postfix/plesk/blacklists, permit_sasl_authenticated, check_client_access pcre:/var/spool/postfix/plesk/non_auth.re
smtp_send_xforward_command = yes
smtpd_authorized_xforward_hosts = 127.0.0.0/8
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions = permit_mynetworks, check_client_access pcre:/var/spool/postfix/plesk/no_relay.re, permit_sasl_authenticated, reject_unauth_destination
virtual_mailbox_base = /var/qmail/mailnames
virtual_uid_maps = static:110
virtual_gid_maps = static:31
virtual_transport = plesk_virtual
plesk_virtual_destination_recipient_limit = 1
smtpd_client_restrictions =
myhostname = *******.com
message_size_limit = 10240000
Output of ps -ef |grep postfix :
root 28215 1 0 20:39 ? 00:00:00 /usr/libexec/postfix/master
postfix 28218 28215 0 20:39 ? 00:00:00 qmgr -l -t fifo -u
postfix 28239 28215 0 20:40 ? 00:00:00 tlsmgr -l -t unix -u
postfix 28240 28215 0 20:40 ? 00:00:00 spawn -n 127.0.0.1:10027 -t inet user=mhandlers-user argv=/usr/lib64/plesk-9.0/postfix-queue 127.0.0.1 10026 before-remote
postfix 28242 28215 0 20:40 ? 00:00:00 smtpd -n 127.0.0.1:10026 -t inet -u -c -o smtpd_client_restrictions -o smtpd_helo_restrictions -o smtpd_sender_restrictions -o smtpd_recipient_restrictions permit_mynetworks,reject -o smtpd_data_restrictions -o receive_override_options no_unknown_recipient_checks
postfix 28539 28215 0 20:57 ? 00:00:00 trivial-rewrite -n rewrite -t unix -u
postfix 29058 28215 0 21:27 ? 00:00:00 pickup -l -t fifo -u -c -o content_filter smtp:127.0.0.1:10027
postfix 29314 28215 0 21:41 ? 00:00:00 bounce -z -t unix -u
postfix 29338 28215 0 21:44 ? 00:00:00 cleanup -z -t unix -u
postfix 29358 28215 0 21:46 ? 00:00:00 smtp -t unix -u
postfix 29457 28215 0 21:56 ? 00:00:00 smtp -t unix -u
postfix 29716 28215 0 22:08 ? 00:00:00 bounce -z -t unix -u
root 29749 29571 0 22:10 pts/3 00:00:00 grep postfix
It looks like your postfix master pid is listening on ports 10025 and 10025.
Look at /etc/postfix/master.cf for the smtpd daemon. Mine looks like this
smtp inet n - n - - smtpd
Instead of "smtp", yours seems to have 10025 and another line for 10026. The other (unlikely) possibility is that you have smtp 10025/tcp in /etc/services.
Update your master.cf to look like the example given and then
sudo service postfix restart
What's the output of:
sudo service postfix status
if it's stopped, run:
sudo service postfix start
make sure /etc/postfix/main.cf has inet_interfaces set to all or the specific interface you wish to have postfix listen.