Postfix is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program.

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11 views

Altermime and SELINUX

I've setup an application called altermime (http://www.pldaniels.com/altermime/) for postfix (SMTP server) which alters emails midstream. I'm injecting a "X-ListUnsubscribe" header into every email ...
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10 views

Postfix favors non virtual to virtual host

I have a linux user thomas and 2 domain names domain1.com and domain2.com. I have followed steps to have two virtual mail boxes /var/mail/vhosts/domain[12].com/ When I test and send an email to ...
2
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1answer
636 views

Mail forward: 550 5.7.1 Anonymous client does not have permissions to send as this sender

I want to install a small mailing list that forwards mails related to a specific project to all project members. So, lets say there are two members in that project userA@mailA.tld and userB@mailB.tld, ...
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14 views

Postfix unable to send mail from mydomain only

My domain DNS is served by the domain registrar. I am able to send mail successfully from any address with postfix but not from mydomain.com From this machine - I only want to be able to send mail. ...
4
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2answers
453 views

configure postfix to accept mail from two WANs

I have a mac server but my question has long left the realm of the GUI. My last hope is a unix forum. I have a cisco router with two WAN ports. The mac uses postfix 2.8.3. I have correctly ...
7
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1answer
64 views

Multiple instances of Postfix throwing error fatal: unknown service: smtp/tcp

I am trying to configure multiple postfix-2.12 instances on FreeBSD 10.0-RELEASE following the README. postmulti -e init postmulti -I postfix-out -G mta -e create ... This all works I can start and ...
0
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1answer
860 views

SMTP issues - unable to connect : CentOS 6.5, Postfix, Dovecot, MySQL

I'm trying to setup an email server on a CentOS system with Postfix, Dovecot and MySQL. I'm following this article for an Ubuntu system: ...
2
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2answers
1k views

My Postfix installation is sending out spam; how to stop it?

Since a few days, my web/mailserver (centos 6.4) is sending out spammails by the bunch, and only stopping the postfix service is putting an end to it. SMPT is set up to only accept connections over ...
2
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1answer
180 views

How do postfix and mailx interact with mbox locking?

If postfix is setup as the MTA using its virtual transport to deliver mail to a local mbox file (and handling delivery of outgoing messages), and mailx is the MUA, being used on that same computer for ...
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3answers
562 views

How to install postfix for sending mails to admin only?

I have a VPS running Ubuntu 13.10 on Digital Ocean. I'd like to install postfix on the server, but I want it to be able to send e-mails only to my e-mail address whenever a system message wants to be ...
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0answers
61 views

Postfix/devcot MailServer - not receiving emails

I'm new to linux and unix in general, I've worked with a shared hosting provider over the years where everything was setup for me, including email. I'm now trying to create my own mail server in my ...
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19 views

How to receive emails on CentOS 5 server?

I've installed postfix with this nice tutorial http://wiki.centos.org/HowTos/postfix and postfix and dovecot are up and running. I set up user maildir as tutorial suggested. Now I can check my ...
1
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1answer
51 views

Postfix is sending and receiving mail locally, but not to external mailbox

I have a CentOS box running my Apache website and Postfix, but whenever I try PHP's mail() function to my @aevidi email, it sends to my local mailbox in ~/mail, but is not visible in Zoho's webmail. ...
2
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1answer
45 views

Allowing outgoing emails that will be delivered to localhost only

I operate a Linux system where I give out free Linux shell accounts to people for educational purposes. Unfortunately, while doing so it's expected to meet abusive users who will keep sending spam ...
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0answers
18 views

Postfix configuration? problem

I try to configure mail server on my VPS. I try this tutorial but unfortunately I cant run it. My configuration files are exact the same I only replaced mydomain.com with my own domain. Also when I ...
6
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1answer
295 views

Mailman / Postfix Configuration Assistance

I am writing for some help regarding Postfix configuration. I cannot seem to get Postfix configured properly to transfer mail to the mailing list installed on the same server. I followed many steps ...
3
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2answers
476 views

Use /etc/aliases for outgoing mail relayed by postfix with local domain

I'm using Ubuntu 12.04 with postfix configured as satellite system that relays outgoing mail to Gmail. For sake of example, my registered domain is example.com I want root cronjobs' error output to be ...
1
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1answer
905 views

Setting up SMTP-AUTH & TLS in Postfix

So I have been in the process of installing a Postfix Server on my CentOS 6.2 Virtual Private Server. I have been following this tutorial: ...
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3answers
3k views

Helo command rejected: need fully-qualified hostname Error

My mail server is in some blacklist cause of spams. I reconfugured postfix. Aften then My customers get this error they can't send emails. 404 4.5.2 <PLLAMNAZIFE>: Helo command rejected: need ...
3
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1answer
4k views

Add header to outgoing email with postfix

Can someone please provide an example on how to add a Precedence: bulk header to all outgoing emails using postfix. I would like to know what file(s) to create or edit and what I should put ...
2
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2answers
1k views

CentOS 6.4 Mail Server

I'm trying to install a mail server on my root server. I'm relative new to Linux but not a absolute beginner. There are many many how to's on the internet I tried to get my own mail server with ...
1
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1answer
49 views

Postfix vs Google SMTP servers inconsistency

I wanted to host my own mail server and in order to do so I've installed Postfix 2.7.0 and Dovecot 1.2.9 on Ubuntu Server 10.04. I had fun reading the docs and configuring all these great tools, I am ...
2
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2answers
375 views

fetch data from Incoming mail in postfix

I have configured postfix for my kk.com domain successfully. Now I want to add function as described in the following example: If someone mails me at admin@kk.com, one php script will fetch ...
0
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1answer
114 views

Upgraded to Ubuntu 14.04 - Mail server missing dovecot-lmtp even though it is installed

So I upgraded to Ubuntu 14.04.1 from 12.04 the other day. Easy upgrade process. Everything worked fine except for my mail server stopped receiving mail. The logs show the mail arrives and is ...
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0answers
117 views

can't receive mails to thunderbird via postfix local server

A small introduction. I have a SMTP server ( Haraka - http://haraka.github.io/ ) on port 25 and a local postfix server on port 9267. I intercepts mails in Haraka and then I send them to my postfix ...
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78 views

virtualbox mail server postfix+dovecot

I'm setting up a mail server(ubuntu14.4 serverX64) for development/testing purposes (using virtualBox bridged-mode) and I just finished this tutorial and everything seams to work. Now I'm not able ...
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99 views

How do I install postfix with MariaDB 10.1? …Or mailserver…?

I'm using CentOS 7 x64. Log: There isn't mariadb-libs for 10.1, not that I'm aware of. There is MariaDB-compat which as I found out seems to provide the same functionality and I have it installed, but ...
1
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1answer
91 views

Mail filtering with procmail in a postfix/dovecot system with virtual users

I had a postfix/dovecot system with mail users working. After unsuccessfully following a few tutorials online to enable procmail, now I have an unusable system. What I want is to enable procmail ...
2
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1answer
324 views

Restricting who can send to an email address

I'd like to do so that only certain From: addresses can send to an email address (mailing list) on an Ubuntu system running Postfix. Understanding the Postfix the manuals are requires a lot of ...
3
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1answer
21 views

sending emails with heirloom, even when Postfix is not running locally

Normally, I can send email from commandline, such as echo hello | mail -s "subject" user@example.com I have noticed that even when Postfix is not running on my machine, I can still "send" emails. ...
7
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1answer
75 views

accessing Maildir locally with Mutt and remotely over IMAP simultaneously

I have Postfix + Maildir + Dovecot + IMAP on my mailserver. I am accessing my mailbox remotely over IMAP with one or more clients (Thunderbird). Additionally, on the server I have mutt configured for ...
6
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1answer
35 views

multiple clients accessing one email account over IMAP

I am using Postfix + Dovecot + IMAP + Maildir and I am accessing my server from two different machines (desktop and Laptop), i.e. two clients (Thunderbird). The are sometimes running simultaneously, ...
5
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1answer
105 views

Postfix: disable authentication through port 25

When using Postfix and IMAP on a mailserver, at least 3 ports are usually opened 25 smtp : incoming emails from anybody (whole internet) 465 smtps : outgoing emails from authorized users (to the ...
3
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0answers
79 views

Postfix error: not yet authorized to deliver mail

I am running a private postfix server for my domain mydomain.com, on server 111.111.111.111 (IP and domain sanitized for privacy reasons) I have sent an email to info@example.com which is on server ...
1
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1answer
1k views

Postfix email bounced (mail for domain loops back to myself)

I have problem when i send a mail to example@orbialia.es for example2@orbialia.es My emails has bounced for this error: status=bounced (mail for orbialia.es loops back to myself) May 9 09:33:58 ...
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0answers
33 views

Mails from my server goes directly to spam

I am running an ubuntu server with plesk panel, Mails sent from this server goes directly to spam folder. All records seems perfect like spf, DKIM, Domain key, PTR etc.. I'm really stuck with this. I ...
4
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1answer
21 views

change smtps port in Postfix

Is it possible in Postfix to specify a non-standard port for smtps? Normally, smtps listens on standard port 465. Standard port is good for publicly used server. But if a server is only intended for ...
5
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3answers
106 views

Dovecot ignores settings for mailboxes

I have set up Dovecot on my Postfix mailserver. My mailserver is using Maildir format: home_mailbox = Mail/inbox/ A user's Mail directory looks like this: $HOME/Mail/inbox $HOME/Mail/drafts ...
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0answers
24 views

How to force email into queue?

I'm writing an application for Linux, and it needs to interact with the mail queue. Is there any way to force a message to be deferred?
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2answers
958 views

Thunderbird fails to connect to Dovecot and Postfix

I set up Dovecot and Postfix, but when I try to authenticate with Thunderbird, it gives this error: "Thunderbird failed to find the settings for your email account." ==> /var/log/dovecot-info.log ...
4
votes
2answers
8k views

“IPv6 support is disabled” warnings

I get the error while running a script which tries to send emails. send-mail: warning: inet_protocols: IPv6 support is disabled: Address family not supported by protocol send-mail: warning: ...
2
votes
2answers
2k views

sending email to IP address via postfix

My friend and I have configured two Postfix mail servers on our laptops. We succeeded in sending mail to a real network (to some Gmail accounts) from our computers; that was the easy part. We now ...
0
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0answers
26 views

firewall and SElinux disabled for postfix for configuration troubleshooting

Why would you disable your firewall and SElinux for postfix and not re enable after configuration? Also why would I have no conf file in SElinux folder only these restorecond.conf ...
1
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2answers
3k views

Postfix, Amavis-new, ClamAV: Permission denied. ERROR

Error lines in /var/log/maillog Sep 22 12:08:20 sun amavis[4493]: (04493-09) (!)run_av (ClamAV-clamd) FAILED - unexpected , output="/var/spool/amavisd/tmp/amavis-20130922T052321-04493-crApLkq5/parts: ...
1
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1answer
67 views

How to make postfix create maildir?

How do you make postfix create maildir folders automatically for all users? I have these two lines in postfix main.cf, which supposed do create maildir folder after the first mail but it is not ...
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1answer
45 views

How can I determine the cause of CF card corruption?

I installed qnx in my CF card and made it bootable and it was working well. However, yesterday it stopped working while my system was running. Checking the filesystem revealed that it was corrupted. ...
2
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0answers
229 views

Impossible to send mail to microsoft (hotmail, live …)

I cannot send mail to hotmail with my postfix server. I can send and receive mail from gmail and others, but not hotmail. I made an "Authentication Report" on auth-results@verifier.port25.com: ...
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0answers
79 views

postfix expand ldap group AND afterwards resolve alias

We have a postfix server which has the user config stored in a openldap directory. Recently we also implemented ldap groups which are expanded by postfix. This works fine, unless the group expands to ...
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0answers
13 views

Exchange NDR Hybrid Setup

NDR changed within hybrid messaging solution . Hybrid of Exchange Server + open sources base Mail Server (using postfix , Cyrus IMAP , etc) unable to view "Email id Or Users ID" in Bounced ...
2
votes
1answer
866 views

Postfix: force local users (PHP) to use the SMTPD for outside recipients

My server has been hacked and was sending lots of spam over the Internet. The first thing I did is shutdown postfix, close the outgoing port 25 and take the time to clean the website, the postfix ...