Remote Domains With VHCS2 And Postfix

Feb 15, 2008

I didn't know where to post this question since VHCS has no official forum (that I know of), so I decided to post it on sitepoint. I'm sure some of you use VHCS and maybe someone can help me with my problem.

I am setting up a hosting server for the sites I develop for my customers. This server is intended to host only websites (no email). The MX records for the hosted domains will mostly be directed to Google Apps.

My problem is that VHCS automatically adds all hosted domains to postfix as local domains. This in turn means that I cannot send email to these domains from the server itself (e.g. from PHP scripts).

I believe that local domains are listed in the file /etc/postfix/vhcs2/domains. Now, I could just delete them from this file and it would probably work, but I would really rather see if there was a way to convince VHCS to not add them to the list in the first place. There are several reasons I am reluctant to do this manually: I have extra work every time I add a domain; there is a chance I'll forget to do this; it says in the file "Please do NOT edit it manually", which probably means that VHCS will overwrite my changes at some time,...

Does anyone know, how to configure VHCS to not serve as a mail server for any of the hosted domains, bearing in mind that I cannot simply shut down postfix, because I need a way of sending email through PHP?

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Jun 5, 2014

I have one specific domain being to another SMTP server via Postfix transport_maps.

This works great, apart from Spam check not working anymore, Spamassassin is not being called for the domain.

Is there any configuration to have Spamassassin check email before it is routed via transport_maps?

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Nov 12, 2014

The VPS has 16 domains running on it, all with different web addresses and their own email accounts etc.

It's a Linux server and is running postfix for the mail. The main website on this domain has the mail service disabled because we have an exchange service on our own server here in the building where we work. Now when anyone on any of our domains on the VPS try to email us at 'maincompany.com' they get the following error message:

This is the mail system at host <vps address>.

Your message could not be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can delete your own text from the attached returned message.

The mail system

<stevew@maincompany.com>: mail for maincompany.com loops back to myself...

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Plesk 12.x / Linux :: Postfix Configuration - Error Regarding Host Name And Virtual Domains

May 21, 2015

I run a virtual server (Ubuntu 12.04, Plesk 12, Postfix 2.9.6) using plesk to manage multiple domains. The server address is server.domain1.com. I use plesk to also manage domain1.com regarding all services, including DNS and mail.

What I just found is that postfix sometimes issues the following warning:

server postfix/trivial-rewrite[7397]: warning: do not list domain server.domain1.com in BOTH mydestination and virtual_alias_domains

The essential part of my main.cf is:
myhostname = server.domain1.com
mydestination = localhost.$mydomain, localhost.localdomain, localhost
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
virtual_transport = plesk_virtual

And /var/spool/postfix/plesk/virtual_domains contains amongst others:

domain1.com domain1.com/

I do not have any issues with receiving or sending e-mails right now, but would like to get rid of the error message however.

Could it be the problem that postfix automatically sets mydomain to $myhostname with skipping the first part (i.e., mydomain is implicitly set to domain1.com)? Should I manually set mydomain to server.domain1.com instead? Any other recommendations? Since mydomain seems to be used in multiple options [URL] ..., I wonder what I might destroy with changing this? As all mail services run without any further troubles at the moment, I don't want to break this...

As I assume that quite some people use a plesk-based server to manage the domain to which the server itself belongs to, I would assume that there should be a general fix/check to updated mydomain accordingly?

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My issue started ince a couple of months seemed to increase with update to Plesk 12.0 (though I can't guarantee it).I am using Centos 6.5, all updated. What happens is that postfix usage starts to increase without any apparent reason (during week-ends for example). Then postfix is not responding anymore.

Code:
top - 13:27:13 up 3 days, 18:44, 0 users, load average: 0.73, 0.33, 0.32
Tasks: 238 total, 2 running, 236 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.3%us, 0.6%sy, 0.1%ni, 98.7%id, 0.3%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 32917292k total, 8982212k used, 23935080k free, 1899416k buffers
Swap: 1046520k total, 0k used, 1046520k free, 4905884k cached

[code]....

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Apr 18, 2008

I have 2 wordpress blogs, and I'd like a few different domains to be shared on each of them.

Using some exemples, suppose I have domains from domainA.com to domainE.com. domainA.com is my main domain and the others are addon domains.

Today Blog1 is using blog.domainA.com, and domainB.com and domainC.com use WebRedirect to blog.domainA.com. And Blog2 uses domainD.com with WebRedirect on domainE.com too.

To access a post like /2008/02/02/this-is-a-nice-post, it is available only at blog.domainA.com, and not by domains B and C. I'd like they 3 to be able to access all posts directly, without redirecting to domain A.


To do that, I suppose I'd need to do some config on cPanel. And also on wordpress, even if I replicate it over other domains it insists to redirect to its configured domain.

I was thinking on the possibility of using symbolic link (ln -s) on their folders to blog.domainA.com folder, but I don't have access to shell on SSH so I'd like to know if it would work before trying.

In a real exemple of what I want, these domains all share the same phpBB forum: forumpcs.com.br, extremepc.com.br, forumdohardware.com.br.

Do u know if symbolic link would work to share the same wordpress? And how to make wordpress stop redirecting to blog.domainA.com?

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Is it possible to make each user/domain only send out 100mails per hour or less?

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Oct 19, 2007

I'm currently having trouble with Postfix. I recently installed some new web hosting software (ispCP) and so some new configs were written for all my software. Postfix was one of them and I can't figure out what's wrong with it.

Whenever I send e-mails to my server, Postfix denies it saying "Unknown address error 554: Relay access denied". The logs say NOTHING about it and I've been trying the old configs on Postfix and still nothing works.

Here are my configs:
main.cf

Code:
#
# Postfix MTA Manager Main Configuration File;
#
# Please do NOT edit this file manually;
#

#
# Postfix directory settings; These are critical for normal Postfix MTA functionallity;
#

command_directory = /usr/sbin
daemon_directory = /usr/lib/postfix
program_directory = /usr/lib/postfix

#
# Some common configuration parameters;
#

inet_interfaces = all
mynetworks_style = host

myhostname = xetaspace.net
mydomain = xetaspace.net.local
myorigin = $mydomain

smtpd_banner = $myhostname ISPCP 1.0.0 Managed ESMTP
setgid_group = postdrop

#
# Receiving messages parameters;
#

mydestination = $myhostname, $mydomain
append_dot_mydomain = no
append_at_myorigin = yes
local_transport = local
virtual_transport = virtual
transport_maps = hash:/etc/postfix/ispcp/transport

#
# Delivering local messages parameters;
#

mail_spool_directory = /var/mail
mailbox_size_limit = 0
mailbox_command = procmail -a "$EXTENSION"

biff = no

alias_database = hash:/etc/aliases

local_destination_recipient_limit = 1
local_recipient_maps = unix:passwd.byname $alias_database

#
# Delivering virtual messages parameters;
#

virtual_mailbox_base = /var/mail/virtual
virtual_mailbox_limit = 0

virtual_mailbox_domains = hash:/etc/postfix/ispcp/domains
virtual_mailbox_maps = hash:/etc/postfix/ispcp/mailboxes

virtual_alias_maps = hash:/etc/postfix/ispcp/aliases

virtual_minimum_uid = 2887
virtual_uid_maps = static:2887
virtual_gid_maps = static:8

#
# SASL paramters;
#

smtpd_sasl_auth_enable = yes

smtpd_sasl_security_options = noanonymous

smtpd_sasl_local_domain = vhcs.net

broken_sasl_auth_clients = yes

smtpd_recipient_restrictions =
permit_sasl_authenticated,
permit_mynetworks,
reject_unauth_destination
master.cf

Code:
#
# Postfix master process configuration file. For details on the format
# of the file, see the Postfix master(5) manual page.
#
# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (100)
# ==========================================================================
smtp inet n - - - - smtpd
#submission inet n - - - - smtpd
# -o smtpd_etrn_restrictions=reject
# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#smtps inet n - - - - smtpd
# -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes
#submission inet n - - - - smtpd
# -o smtpd_etrn_restrictions=reject
# -o smtpd_enforce_tls=yes -o smtpd_sasl_auth_enable=yes
#628 inet n - - - - qmqpd
pickup fifo n - - 60 1 pickup
cleanup unix n - - - 0 cleanup
qmgr fifo 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
smtp unix - - - - - smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay unix - - - - - smtp
-o fallback_relay=
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq unix n - - - - showq
error 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
#
# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent. See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ====================================================================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/local/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 - - pipe
flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}

#
# vhcs delivery agent.
#

ispcp-arpl unix - n n - - pipe flags=O user=vmail argv=/var/www/ispcp/engine/messager/ispcp-arpl-msgr

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Jul 6, 2007

I tried following the directions about 'The Perfect Setup' for SuSE 10.1 for my email server and finally got it to work, but now I am having issues with error messages!

In my /var/log/mail file I get tons of:
Jul 6 18:15:17 <server> postfix/qmgr[8226]: warning: connect to transport error: Operation not permitted

and in my /var/log/messages file I get tons of:
Jul 6 18:19:17 <server> kernel: audit(1183738757.049:122): REJECTING w access to /var/spool/postfix/private/error (qmgr(8226) profile /usr/lib/postfix
/qmgr active /usr/lib/postfix/qmgr)

I can't find anyone having issues with the 'error' part of postfix.

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Jan 17, 2007

Its incredible.... what happens with postfix....

the install is ok but:

Code:
[root@vps25621 ~]# ping google.com
PING google.com (64.233.167.99) 56(84) bytes of data.
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=1 ttl=244 time=24.6 ms
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=2 ttl=244 time=27.9 ms
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=3 ttl=244 time=24.6 ms
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=4 ttl=244 time=24.9 ms
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=5 ttl=244 time=24.7 ms

--- google.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4006ms
rtt min/avg/max/mdev = 24.651/25.394/27.930/1.275 ms
[root@vps25621 ~]# postfix start
postfix/postfix-script: warning: /var/spool/postfix/etc/services and /etc/services differ
postfix/postfix-script: warning: /var/spool/postfix/etc/hosts and /etc/hosts differ
postfix/postfix-script: warning: /var/spool/postfix/etc/passwd and /etc/passwd differ
postfix/postfix-script: starting the Postfix mail system
[root@vps25621 ~]# ping google.com

[root@vps25621 ~]#

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Jul 7, 2008

I'm thinking of forcing the install but well maybe I should just post what's going on

After unpacking 0B of additional disk space will be used.
Setting up virtualmin-base (1.0-19) ...
Setting Webmin theme
Setting Usermin theme
Configuring Postfix
Error: Failed to query Postfix config command to get the current value of parameter virtual_alias_maps: <tt></tt>
Error
-----
Failed to query Postfix config command to get the current value of parameter virtual_alias_maps: <tt></tt>
-----
dpkg: error processing virtualmin-base (--configure):
subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
virtualmin-base
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I ran a dpkg-reconfigure and well I didn't had any problems
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Jul 4, 2008

no mails are sent, without mail i'm lost because my users need confirmation emails to activate their membership, thank you

this is from my mail.log

postfix/smtp[30100]: 597E529C0FE1: to=<d1234@yahoo.com>, relay=none, delay=38985, delays=38985/0.01/0/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=yahoo.com type=MX: Host not found, try again)

postfix/smtp[30098]: 5FCBA29C1032: to=<h1234@yahoo.com>, relay=none, delay=27875, delays=27875/0/0/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=yahoo.com type=MX: Host not found, try again)

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Aug 1, 2008

I recently moved to a VPS and installed Postfix onto it as my mail server. But I have following problems with its consistent working:

1. I experience that every now and then (once in 2 weeks) , it stops sending mails and put them in the mail queue with the following error:

Host or domain name not found. Name service error for name= type=MX: mysite.com not found, try again

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2. Secondly, I see that the header of my mails contains the hostname of my VPS machine "gospel" which is ofcourse not intended. How can I have my domain name in the mail headers?

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Feb 23, 2008

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Current /etc/postfix/header_checks:

Code:
/[^[:print:]]{8}/ DISCARD
/^X-Spam-level: *******.*$/ DISCARD

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Jan 25, 2007

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I read Postfix's configuration at Postfix.org, but I couldn't find anything that I thought to be relevent to this situation. Do any of you have suggestions or ways to fix this? Besides disabling e-mail all together?

As another detail, I'm running Postfix on its original config, not through a MySQL database config.

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Oct 23, 2007

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Aug 13, 2007

I am running postfix on my server. This server is used by me only Here is what I want to do for this server:

1. Receive email: I want to receive emails for some of my virtual domains host in this server

2. Check mail: I check email by using a web client which install in the server

3. Send mail: I send email by using a web client which install in the server.

4. Don't want to let any remote user to send email through my server.

Here is my config:

alias_database hash:/etc/aliases
mynetworks_style host
myorigin $mydomain
inet_interfaces all
mail_owner postfix
mydestination $myhostname, localhost.$mydomain, localhost
mydomain example.com
myhostname mail.example.com
queue_directory /var/spool/postfix
setgid_group postdrop
unknown_local_recipient_reject_code 550
virtual_alias_domains somevirtualdomains.com
virtual_alias_maps hash:/etc/postfix/virtual

Is my server secure enough? Can people spam email through my server?

I see people suggest to use smtp auth or pop before smtp to increase the security, Do you think it's necessary to do so in my case?

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I did a search in google and couldn't find anything relevant only this.

create a alias like this.

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Feb 25, 2008

I installed recently Postfix + Dovecot (yum) on a CentOS 5.1 test box. The configuration went OK, I can telnet on port 25, 587 and 465 with no problems.

# hostname -f
localhost.localdomain

#openssl s_client -connect localhost:465
CONNECTED(00000003)
depth=0 /C=CA/ST=Quebec/L=Montreal/O=Axivo Inc./CN=localhost/emailAddress=webmaster@localhost
verify error:num=18:self signed certificate
verify return:1
depth=0 /C=CA/ST=Quebec/L=Montreal/O=Axivo Inc./CN=localhost/emailAddress=webmaster@localhost
verify return:1
[more certificate code here ...]
---
220 localhost.localdomain ESMTP Postfix
ehlo localhost
250-localhost.localdomain
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

# telnet localhost 587
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 localhost.localdomain ESMTP Postfix
ehlo localhost
250-localhost.localdomain
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN ....

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I'm using Ubuntu 8.10.

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2. which SMTP/POP3 is best? dovecot or courier or any other

3. or which MTA/POP3 combination is easy and works best?

i am looking for easy installation so that i can use webmail and outlook for emails.
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