Ubuntu Servers :: Postfix Relay Mail For Local Users?

Mar 1, 2011

I have a mail server running Postfix and the problem I'm running into is that when trying to send mail, I get a "relay access denied" error.Inside my main.cf, I did not specify 'smtpd_recipient_restrictions' so by default, the variable is:

Code:
smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination
The 'mynetworks' variable looks like this:

[code]....

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Server :: Configure Postfix To Relay Mail To Multiple Internal Mail Servers With Different Domains?

Aug 6, 2010

Two exchange servers internally. One is setup for example.com (192.168.1.10) and the other is setup for example2.com (192.168.1.20) Both are behind a single public IP.

I want to use postfix to sit in front of the two exchange servers. Postfix will accept mail for both domains and relay to the appropriate server. I have postfix installed with only defaults at this point.

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Ubuntu Servers :: Postfix Relay - Exchange Sends The Mail Instead Giving Recipient Mail A Valid Reverse DNS Lookup

Jan 12, 2011

The scenario: We have an external server that runs HTTP/DB servers for out shop system. Then, there's our local, in-house infrastructure that runs a.. yeah... Exchange 2010. The shop system on the external server needs to send mails to customers (order confirmations, invoices, etc.). seing as sending them directly through the local MTA (Postfix) would cause mail delivery problems because of reverse DNS issues, i've set the Postfix MTA to act as a satellite to our in-house Exchange Server, so the Exchange sends the mail instead, giving recipient mail servers a valid reverse DNS lookup.

Now, mails sent by the (proprietary, uneditable) shop system are relayed correctly and sent to the target e-mail address. My problem is: Mails not sent by the shop system, but by our own PHP scripts which run on that same external servers, are NOT relayed properly. So the Exchange is fine with the mails sent by the shop system, but not the mails sent by our scripts. This is what i get in the mail.log: The successfully relayed mail sent by the shop system:

[Code]....

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Server :: Postfix Local Users Unable To Send Mail

Jul 13, 2011

We are using postfix for relaying our internal system generated mail to other domain through google apps. All client servers able to send mail through the postfix server, only user of local postfix server(root, etc) unable to send mail with command like mutt, mail.My detail configuration given below:

Code:

postconf -n

output

Code:

alias_maps = hash:/etc/aliases
command_directory = /usr/sbin
config_directory = /etc/postfix

[code]....

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Ubuntu :: Gmail Relay And Post Fix / Send Emails With Postfix And Gmail As The Mail Relay?

Apr 29, 2011

My issue is that i'm trying to send emails with postfix and gmail as the mail relay,i'm trying to send emails to my self by sendmail -bv user@gmail.com

In the logs, i can understand that it been delivered to the destination,
taken from: /var/log/mail.log:
Apr 30 00:05:23 moni postfix/pickup[10490]: 9C7552170C: uid=0 from=<root>
Apr 30 00:05:23 moni postfix/cleanup[10495]: 9C7552170C: message-id=<20110429210523.9C7552170C@moni.localdomain>
Apr 30 00:05:23 moni postfix/qmgr[10491]: 9C7552170C: from=<root@moni.localdomain>, size=283, nrcpt=1 (queue active)
code....

When login in my gmail account i can't see nothing under the sent / inbox / spam folder.

it's seems like the mail are been sent.. but nothing is happening.

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Fedora Servers :: Postfix : Some Users Considered As Spam By Certain Mail Providers?

May 21, 2010

I have an issue with postfix and my server.One account (mine) is not considered as spam by no one. But all the other users are treated as spam by yahoo, and hotmail. And I can't understand why.Here are the header from one user who sent an email to my yahoo account (treated as spam):

Code:
From userNAme Sat May 22 01:52:27 2010
X-Apparently-To: me@yahoo.ca via 98.136.183.25; Fri, 21 May 2010 14:52:55 -0700

[code]...

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Server :: Postfix To Deliver Local Relay

May 25, 2010

Some mail coming to my postfix server will need to be delivered local and the rest to an internal mail server.
The internal mail server is mail.example.com where there is no bob@example.com but there is a sam@example.com.
Is it possible to configure postfix to do this?

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Server :: Postfix Not Relay Mail Via Gmail Account SMTP

Feb 11, 2011

I'm trying to set up my postfix server to relay mail (via a php cms) using Gmail's smtp on my account, but for some reason, Gmail returns an error code that StartTLS must be sent first, my postfix main.cnf file can be found at pastebin, because of this forum's text length I cannot paste my postfix main.cnf file as can be seen I have everything set and configured for Gmail, but postfix (for some unseen reason) can not send StartTLS. [URL].

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Server :: Using Postfix To Relay To MS Exchange Allowing Only Mail To Domain

May 13, 2011

I'm using Ubuntu Server 10.04 and I can successfully relay mail generated by php scripts through an Exchange server.What I want to do is accept incoming mail from the Internet through postfix and relay it to the Exchange server but I want all mail that is not addressed to ...@mydomain.edu to be discarded.

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Server :: Setting Up Postfix As Outgoign Mail Relay For Several Domains / Hosts

Oct 6, 2009

I would like to setup postfix to act as a relay for the outgoing mails of a couple of servers each serving it's own domain.The mails we are talking about are standard administrative emails like user registration, password reset request. The volume of those mails will naturally grow as the site grows. Which for me poses the problem that depending on the growth of the site you will sooner or later hit the quotas imposed by (my otherwise preferred) providers like GMail or smtp.com.

So what I need is a mail relay that will only accept mails from authenticated clients from hosts in its access list and relay their mail without restrictions. Is that possible with postfix? What has to be changed in the config and what are the pitfalls?

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Server :: Use Postfix Send Mail Return 'relay Access Denied' ?

Jan 24, 2010

my server is Redhat as 5 + postfix +Dovecot .when i use smtp to send mail´╝îit can't to send,the system return "relay access denied" ? This is my maini.cf

Code:
# Global Postfix configuration file. This file lists only a subset
# of all parameters. For the syntax, and for a complete parameter
# list, see the postconf(5) manual page (command: "man 5 postconf").
#
# For common configuration examples, see BASIC_CONFIGURATION_README

[Code].....

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Ubuntu Servers :: Secondary Mail Server And A Mail Gateway/relay?

Aug 3, 2011

Our primary mail server is Exchange 2003 Standard on Windows Server 2003 Standard - don't shout at me; I inherited it already set up this way.I have a couple of hardware identical redundant servers (HP ML350 boxes), all with very fast 2 or 4 disk arrays, multiple core CPUs and plenty of memory, and I am looking at two potential new additions to the infrastructure.

A secondary mail server is high on my list of priories. I've been well and truly bitten by Exchange in the past and given that this particular box has been running four years straight and that it's mail store is dangerously large, having a secondary mail server in place suddenly makes a lot of sense.

A new Exchange 2010 box is currently being set up, but the secondary mail server will remain in place even when the new Exchange server is brought online, so this won't be a wasted exercise.... I also want a gateway box in place to filter and relay mail to the primary server, or to the secondary server if the primary is unavailable. Currently our outer perimeter is:

ISP supplied CISCO router
Draytek VigorPro 5510 UTM

Untangle running in bridged mode (primarily used for SPAM filtering, URL blacklisting, and very little else) Exchange 2003 sits behind the Untangle box. This is how I want to end up:

CISCO >> Draytek >> Ubuntu gateway >> Exchange/secondary mail server

I know I could replace/remove the Draytek but I want it to remain for several reasons, including lots of VPN dial-in users already configured and that it offers us an additional layer of email antivirus scanning before things hit the Exchange box. No point switching all of our remote workers over to new tunnels unnecessarily...

I have done some research and have started testing a pilot secondary mail server using Ubuntu/postfix DNS is properly set up and MX records and reverse PTR records are all present and correct, and things are looking encouraging so far. Before I go out over deep waters and start to flounder, has anyone who has done something like this got any obvious howlers I should be looking to avoid ?

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Ubuntu Servers :: Nullmailer Relay Through The Postfix?

Feb 21, 2011

I currently have a postfix / dovecot server running on one ubuntu server with nullmailer relaying webmail on a different server. This is currently working except the mail server is rejecting incorrect addresses which results in the messages being stuck in the nullmailer queue on the webmail server. Is it possible to force postfix to accept and manage all relayed messages from webmail, or is it possible for the nullmailer to manage the bounced messages correctly?

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Ubuntu Servers :: SMTP Relay - How To Configure Postfix

Jan 26, 2010

I've search high and low.. does anyone know how to configure Postfix/Dovecot to use another SMTP server (i.e. smtp.comcast.net) as my ISP blocks port 25?

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Ubuntu Servers :: Setup Postfix To Relay Email It Cannot Deliver Locally?

Jul 17, 2011

I'm trying to setup postfix (or exim, I don't mind which), so I can move away my last remaining PC from Windows.I've tinkered with Postfix for good part of a month and I can get it to accept emails using SMTP and post them to a virtual mailbox based on MySQL tables. And it rejects mail addressed to local email addresses that it can't find in the table.

First question (or problem.) I've set up Postfix to relay email it cannot deliver locally such as is the case when you send out an email. My remote host requires authentication. How can I set this up?

Second question: I want to force my clients to use either AUTH, TLS or SSL, and not allow anonymous connections (to prevent an open relay server.) How do I set that up without interfering with the smarthost setting? The smarthost login is not one of my clients, it's a pre-determined login and password that is solely used for the email relaying aspect.

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Software :: Mail(x) On 12.2 Does Not Send Mail To Local Users

Feb 27, 2009

I have been able to use the mail program on my old Ubuntu instasll which I found quite handy. However, it isn't functioning "out of the box" like I expected. I've tried to configure it as mail was in Ubuntu to no avail.

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Fedora Servers :: Relay Access Denied 554 5.7.1 (postfix And Smtp)

Jul 2, 2010

My postfix is ok with receiving emails but i can send mail to my domain only [URL] When I want to send to other domains i receive this error (in the maillog):

Quote:

postfix/smtpd[14172]: NOQUEUE: reject: RCPT from 93-46-46-73.ip106.fastwebnet.it[93.46.46.73]: 554 5.7.1 <giannileggio@shoppeo.com>: Relay access denied; from=<info@sampledomain.com> to=<giannileggio@shoppeo.com> proto=ESMTP helo=<[36.234.52.97]>

it is the same via thunderbird or via telnet. This is my configuration

Quote:

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
broken_sasl_auth_clients = yes
command_directory = /usr/sbin

[code]....

I used 'sampledomain' instead of my real domain

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Ubuntu Servers :: Verify That Mail Server Is Not An Open Relay?

Apr 16, 2011

I'm setting up a mailserver for my domain.I'm seeing relay rejections in the mail.logbut I'd like to have external validation that nothing bad is exiting the domain beforeI wind up on blacklists

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Ubuntu Servers :: Can't Send Mail Using PostFix - Only Receive Mail

Jun 30, 2011

I set up my mail server using the guide here: [URL] I am able to receive mail, I can send mail locally, but I can't send to external addresses. This is in my mail.log: Quote: Jun 30 14:40:43 Server postfix/smtp[10725]: 2FD9322015BF: to=<myemail@gmail.com>, relay=none, delay=1634, delays=1484/0.02/150/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[74.125.65.27]:25: Connection timed out)

This is my main.cf:

[Code]...

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Ubuntu Servers :: Local Users Are Sending Mails Through Ms Outlook Using Local IP?

Jul 26, 2011

I have a postfix mail server on ubuntu 10.04 lts behind a router. so all local users are fetching/sending mails through ms outlook using local IP. Sometimes when internet goes down and any mail send then it bounced back immediately saying domain not found. Can u please tell me how i configure to hold all mails in postfix server rather than bounce when internet fails and will pass through when restored the internet around 15-30 minutes?

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Ubuntu Servers :: Mail SMTP Relay / Copy All Traffic To Another Port For Monitoring?

Sep 2, 2010

I'm running ASSP on Ubuntu 10.04.1 it's mostly working fine. I have one problem which has been bugging me for some time. I don't want to filter outbound mail, but if I can relay (proxy) my outbound mail through ASSP, then it can automatically add to the whitelist.

As ASSP is a proxy, I need a server to send it to once ASSP receives it. I've tried my ISP, but this failed and they weren't willing to confirm if a connection attempt was received at their end.

Current setup

Inbound

mx -> router -> ASSP -> Exchange 2003

Outbound

Exchange 2003 -> mx

I'd like to setup outbound as either

Exchange 2003 -> ASSP -> <ISP> SMTP relay
Exchange 2003 -> ASSP -> <relay running on Ubuntu eg postfix>

Can anyone help me with troubleshooting steps or a better suggestion for how I can set this up. I'd love to know why my ISP setup didn't work, but I don't know a tool for monitoring IP traffic in Ubuntu SE, in windows I use Wireshark is there any equivalent I can setup for Ubuntu or a tool I can use in windows which will show all traffic, Ubuntu and windows server are on the same netgear switch, not sure it's smart enough to copy all traffic to another port for monitoring.

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Software :: Postfix - Send Mail From One Local Computer To Another Local Computer?

Jan 8, 2010

What is the minimum configuration to postfix that I need to do (i.e. to its main.cf file) in order to have the following:mail go from user1 on comp1 to user2 on comp2 on same landemonstration:

user1@comp1# Mail -v "" user2@comp2.somelan.com
hi there
[CONTROL-D]

[code]...

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Debian Configuration :: Postfix Not Delivering To Local Users / Sort It?

Mar 24, 2011

I did search the forum but didn't find an answer.

I have setup Postfix + Dovecot on my basic debian 5 server. If I send a message to a localuser@mydomain.com from mutt, it delivers just fine and is visible when viewed through squirrelmail, I can also send just fine.

My issue is that irrespective of what options I set in main.cf, I cannot for the life of me get Postfix to stop erroring with "Recipient address rejected: User unknown in virtual alias table". I'm stumped.

My main.cf is as follows code...

I do not want to setup virtual hosting with MySQL or similar, I literally want to receive mail in local users mailboxes for a single domain. Any ideas on what's missing?

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Server :: Postfix Cannot Send Mail To Users In The Same Machine?

Jun 22, 2010

i am trying to set up a mail server that will support users in a LAN in my school. I am using postfix on a Mandrakelinux distro.

I can send mail when I am root to the other user on my (same) machine both when in command line (mail command) and on Graphical mail client (Kmail ) but the user (sam) cannot send mail to the root account on either interfaces.

I followed the postfix configuration settings on John_Wiley_-_Redhat_Linux_Networking_and_System_Administration_3rd_Edition.

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Ubuntu Servers :: Postfix "Relay Access Denied" Error?

Jul 3, 2010

i have been working on setting up an email server over a ddns. All seems to be working (i can email me@my_ddns_domain.com to me@my_ddns_domain.com) except that when i try and send to another email address (some_other_me@other_host.com) i get the error "5.7.1 Relay access denied". The way i tested this is as follows:
Code:
me@my_ddns_domain:~/$ netcat my_ddns_domain.com 25
220 my_ddns_domain.com ESMTP Postfix (Ubuntu)
ehlo localhost
250-my_ddns_domain
250-PIPELINING

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Ubuntu Servers :: Virtual SMTP With A Postfix Relay - Configure The "Relayer MTA"?

Feb 19, 2011

I'm trying to use different MTA servers (one for each domain) on the same public IP and port (25). Here I attach a graphic of my idea, to have a Postfix server that receives all incoming mail from internet, and relays to different local servers. esquema_mta-dns.jpg How can be configured the "Relayer MTA" ?

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Server :: When Sent Mail For Local Users Its Delivered Locally

Sep 22, 2010

I installed sendmail in RHEL5.4 with TrendMicro Spam scan engine. The configuration like sendmail should forward all the mails to scan engine after scanning it will deliver it to the mail domains. same way all the mails coming from external servers are scanned and the delivered to local box. My problem is when i sent mail for local users its delivered locally. but when i sending mail for external like yahoo its going through scan engine. I added the smarthost in sendmail.mc file also.

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Ubuntu Servers :: Migrate Postfix Mail Server To Exchange 2010 Mail Server

Nov 3, 2010

I have a problem relate to posttfix.I want to mirgare postfix mail server to exchange 2010 mail server but I can't do it,u can help me.You can show me have to do configure postfix and exchange how to?

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Software :: Setup A Mail Server - Virtual Users With Postfix - PostfixAdmin - Courier - Mailscanner - ClamAV On CentOS 5.5

Dec 26, 2010

I am trying to set up a Mail Server -- Virtual Users with Postfix, PostfixAdmin, Courier, Mailscanner, ClamAV On CentOS 5.5 using this guide. These are the version and softwares I have used till now:-

[Code]....

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Ubuntu Servers :: Can't Get Mail With Postfix On 10.10

Dec 18, 2010

I am trying to install a mail server (postfix). I followed the instructions (up until SMTP, I do not want that) on ubuntu pages, without any result. I can send mail, but I can't get any.

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