Postfix GMAIL relay not working

kirenpillay · 06-30-2012, 08:12 AM

I'm trying to set up postfix relay access via SMTP using gmail using the many tutorials on the net. It looks as though I am missing a prerequites. I've reinstalled postfix a couple of times with the same issue.

Below are the logs.
1. The line that says relay=none indicates that the relaying to gmail isn't happening. Even though it says bounced, i doubt it is even getting there.
2. I tried telnet-ing into [smtp.gmail.com] on port 587 and it works, so not network issues.

Code:

Jun 30 14:59:43 Flash postfix/pickup[8848]: 3667B2D32B: uid=1000 from=<kiren>
Jun 30 14:59:43 Flash postfix/cleanup[8853]: 3667B2D32B: message-id=<20120630125943.3667B2D32B@Flash>
Jun 30 14:59:43 Flash postfix/qmgr[8849]: 3667B2D32B: from=<kiren@Flash>, size=328, nrcpt=1 (queue active)
Jun 30 14:59:43 Flash postfix/error[8855]: 3667B2D32B: to=<kp1@gmail.com>, relay=none, delay=0.02, delays=0.01/0/0/0, dsn=5.0.0, status=bounced ([smtp.gmail.com]:587)
Jun 30 14:59:43 Flash postfix/cleanup[8853]: 39CEA2D32D: message-id=<20120630125943.39CEA2D32D@Flash>
Jun 30 14:59:43 Flash postfix/bounce[8856]: 3667B2D32B: sender non-delivery notification: 39CEA2D32D
Jun 30 14:59:43 Flash postfix/qmgr[8849]: 39CEA2D32D: from=<>, size=1923, nrcpt=1 (queue active)
Jun 30 14:59:43 Flash postfix/qmgr[8849]: 3667B2D32B: removed
Jun 30 14:59:43 Flash postfix/local[8857]: 39CEA2D32D: to=<kiren@Flash>, relay=local, delay=0.01, delays=0/0/0/0, dsn=2.0.0, status=sent (delivered to mailbox)
Jun 30 14:59:43 Flash postfix/qmgr[8849]: 39CEA2D32D: removed

My main.cnf

Code:

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

readme_directory = no

# TLS parameters
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:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

myhostname = Flash
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = Flash, localhost.localdomain, localhost
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mynetworks_style = host
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = loopback-only
#inet_interfaces = all
default_transport = error
relay_transport = error

# sets gmail as relay
relayhost = [smtp.gmail.com]:587

#  use tls
smtp_use_tls=yes

# use sasl when authenticating to foreign SMTP servers
smtp_sasl_auth_enable = yes 

# path to password map file
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd

# list of CAs to trust when verifying server certificate
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt

# eliminates default security options which are imcompatible with gmail
smtp_sasl_security_options =


debug_peer_list=smtp.gmail.com
debug_peer_level=3

lithos · 06-30-2012, 08:49 AM

Quote:

Originally Posted by kirenpillay

....

My main.cnf

Code:

....
recipient_delimiter = +
inet_interfaces = loopback-only  <--- probably this limits every outside communication with your server
#inet_interfaces = all
default_transport = error
relay_transport = error    <--- see under "The variable default_transport specifies which transport is used to deliver non-local mail (by default smtp). ..."

# sets gmail as relay
relayhost = [smtp.gmail.com]:587

Hi, probably you have a problem where marked with red and click the links to see some troubleshooting.

kirenpillay · 07-08-2012, 01:35 PM

Hi Lithos,

I moved to exim4 and installed that with the smarthost configuration option and it worked first time for me.

I think choosing a postfix configuration with smarthost at postfix installation-time would have resolved the problem for me, but I haven't revisited this issue. I think the relay_transport setting may have been the problem but I don't have the time to confirm this.

Thanks for your help!

kirenpillay · 07-14-2012, 05:08 AM

Hi

I revisited this issue when I installed Mint 13. I chose the smarthost option when I installed postfix. Thereafter the following settings file worked for me.

I had another issue resolving MX records which where not working because of my router's DNS proxy. This was fixed by following link http://www.freespamfilter.org/forum/...hp?f=10&t=2049.

Quote:

# See /usr/share/postfix/main.cf.dist for a commented, more complete version

# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

readme_directory = no

# TLS parameters
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

# use tls
smtp_use_tls=yes

# use sasl when authenticating to foreign SMTP servers
smtp_sasl_auth_enable = yes

# path to password map file
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd

# list of CAs to trust when verifying server certificate
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt

# eliminates default security options which are imcompatible with gmail
smtp_sasl_security_options =

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

myhostname = Flash
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = Flash, localhost.localdomain, localhost
relayhost = smtp.gmail.com:587
relay_transport = error
inet_interfaces = all
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +