Go Back   HowtoForge Forums | HowtoForge - Linux Howtos and Tutorials > Linux Forums > Server Operation

Do you like HowtoForge? Please consider supporting us by becoming a subscriber.
Reply
 
Thread Tools Display Modes
  #1  
Old 14th August 2012, 00:04
abrichr abrichr is offline
Junior Member
 
Join Date: Aug 2012
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Default Helo command rejected: need fully-qualified hostname

Hello,

This is my first time attempting to configure a mail server. For the purposes of this thread, let my domain name be abc.com.

I followed the instructions at http://www.exratione.com/2012/05/a-m...dovecot-mysql/.

Outgoing mail seems to be working; the problem is with incoming mail. The message on the server says:

postfix/smtpd[2642]: NOQUEUE: reject_warning: RCPT from abc: 504 5.5.2 <phil>: Helo command rejected: need fully-qualified hostname; from=<andrew@abc.com> to=<andrew@abc.com> proto=SMTP helo=<phil>

In this case, abc.com is an existing domain name that does not currently point to this server. I wish to configure this server fully before changing the DNS so as to minimize downtime.

Furthermore, "phil" is the name of the local computer I am using to connect to the mail server. It seems unreasonable to me for the server to expect that every client machine has a fully qualified domain name. Therefore, I suspect that something is wrong with the configuration settings specified in the tutorial I followed.

Any help in this matter would be greatly appreciated.

Version information:

Quote:
Ubuntu 12.04
Postfix 2.9.3
Dovecot 2.0.19
/etc/postfix/main.cf:


Quote:
# The first text sent to a connecting process.
smtpd_banner = $myhostname ESMTP $mail_name
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
readme_directory = no

# SASL parameters
# ---------------------------------

# Use Dovecot to authenticate.
smtpd_sasl_type = dovecot
# Referring to /var/spool/postfix/private/auth
smtpd_sasl_path = private/auth
#smtpd_sasl_path = /var/run/dovecot/auth-client
smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain =
smtpd_sasl_authenticated_header = yes

# TLS parameters
# ---------------------------------

# Replace this with your SSL certificate path if you are using one.
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
# The snakeoil self-signed certificate has no need for a CA file. But
# if you are using your own SSL certificate, then you probably have
# a CA certificate bundle from your provider. The path to that goes
# here.
#smtpd_tls_CAfile=/path/to/ca/file
smtpd_use_tls=yes
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
#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.

# SMTPD parameters
# ---------------------------------

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
# will it be a permanent error or temporary
unknown_local_recipient_reject_code = 450
# how long to keep message on queue before return as failed.
# some have 3 days, I have 16 days as I am backup server for some people
# whom go on holiday with their server switched off.
maximal_queue_lifetime = 7d
# max and min time in seconds between retries if connection failed
minimal_backoff_time = 1000s
maximal_backoff_time = 8000s
# how long to wait when servers connect before receiving rest of data
smtp_helo_timeout = 60s
# how many address can be used in one message.
# effective stopper to mass spammers, accidental copy in whole address list
# but may restrict intentional mail shots.
smtpd_recipient_limit = 16
# how many error before back off.
smtpd_soft_error_limit = 3
# how many max errors before blocking it.
smtpd_hard_error_limit = 12

# This next set are important for determining who can send mail and relay mail
# to other servers. It is very important to get this right - accidentally producing
# an open relay that allows unauthenticated sending of mail is a Very Bad Thing.
#
# You are encouraged to read up on what exactly each of these options accomplish.

# Requirements for the HELO statement
smtpd_helo_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_hostname, reject_invalid_hostname, permit
# Requirements for the sender details
smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks, warn_if_reject reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unauth_pipelining, permit
# Requirements for the connecting server
smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org, reject_rbl_client blackholes.easynet.nl, reject_rbl_client dnsbl.njabl.org
# Requirement for the recipient address. Note that the entry for
# "check_policy_service inet:127.0.0.1:10023" enables Postgrey.
smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unauth_destination, check_policy_service inet:127.0.0.1:10023, permit
smtpd_data_restrictions = reject_unauth_pipelining

# require proper helo at connections
smtpd_helo_required = yes
# waste spammers time before rejecting them
smtpd_delay_reject = yes
disable_vrfy_command = yes

# General host and delivery info
# ----------------------------------

myhostname = abc.com
myorigin = /etc/hostname
mydestination = abc.com, localhost
#relayhost =
# If you have a separate web server that sends outgoing mail through this
# mailserver, you may want to add its IP address to the space-delimited list in
# mynetworks, e.g. as 111.222.333.444/32.
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

# This specifies where the virtual mailbox folders will be located.
virtual_mailbox_base = /var/vmail
# This is for the mailbox location for each user. The domainaliases
# map allows us to make use of Postfix Admin's domain alias feature.
virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf, mysql:/etc/postfix/mysql_virtual_mailbox_domainaliases_maps.cf
# and their user id
virtual_uid_maps = static:150
# and group id
virtual_gid_maps = static:8
# This is for aliases. The domainaliases map allows us to make
# use of Postfix Admin's domain alias feature.
virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf, mysql:/etc/postfix/mysql_virtual_alias_domainaliases_maps.cf
# This is for domain lookups.
virtual_mailbox_domains = mysql:/etc/postfix/mysql_virtual_domains_maps.cf

# Integration with other packages
# ---------------------------------------

# Tell postfix to hand off mail to the definition for dovecot in master.cf
virtual_transport = dovecot
dovecot_destination_recipient_limit = 1

# Use amavis for virus and spam scanning
content_filter = amavis:[127.0.0.1]:10024

# Header manipulation
# --------------------------------------

# Getting rid of unwanted headers. See: https://posluns.com/guides/header-removal/
header_checks = regexp:/etc/postfix/header_checks
# getting rid of x-original-to
enable_original_recipient = no

Last edited by abrichr; 14th August 2012 at 00:11. Reason: Added version information, configuration values
Reply With Quote
Sponsored Links
  #2  
Old 14th August 2012, 19:24
falko falko is offline
Super Moderator
 
Join Date: Apr 2005
Location: Lüneburg, Germany
Posts: 41,701
Thanks: 1,900
Thanked 2,739 Times in 2,574 Posts
Default

Do you have a fully-qualified hostname in /etc/hostname, or is it just phil?
__________________
Falko
--
Download the ISPConfig 3 Manual! | Check out the ISPConfig 3 Billing Module!

FB: http://www.facebook.com/howtoforge

nginx-Webhosting: Timme Hosting | Follow me on:
Reply With Quote
  #3  
Old 15th August 2012, 00:58
abrichr abrichr is offline
Junior Member
 
Join Date: Aug 2012
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
 
Default

I did have a fully-qualified hostname in /etc/hostname, but I scrapped that installation and went with the one at http://www.howtoforge.com/virtual-us...untu-12.04-lts instead.

It's up and running, but I'm having some performance problems, for which I've started a thread at http://www.howtoforge.com/forums/sho...666#post283666.

Thanks!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Need help with ISPConfig Mail and Squirrelmail m.xander Installation/Configuration 109 3rd February 2012 00:15
Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail -Ubuntu 8.04 c4rdinal HOWTO-Related Questions 112 23rd August 2011 10:49
Odd Spam behaviour itsnedkeren Installation/Configuration 1 11th December 2010 14:20
Being Spammed/Hacked/Probed not sure PLEASE HELP! kresser General 10 29th October 2010 17:25
Can't access to my website - after install problem pallermo Installation/Configuration 18 4th June 2010 13:29


All times are GMT +2. The time now is 07:08.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.