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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Postfix, Send specific Emails to an alternative external SMTP server?

First of all, I apologize about my inexperience on this but I will try to explain my problem the best way I can. We have an email server(CentOS 5/Postfix 2.3.3) that fetches the emails from the ...
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2answers
17 views

Redirect specific e-mail address sent to a user, to other email-recipients

I'd like to know if it is possible to configure postfix to redirect to many email addresses (including the original recipient) instead of only one? Here is my scenario: When an e-mail is: Sent from: ...
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1answer
15 views

How to configure sendmail.postfix to relay on exchange 2010?

I'm currently trying to figure out how to configure sendmail.postfix in Red Hat 6 to work with exchange 2010 relay. I've already configured our exchange server to allow our web server to relay. What ...
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1answer
450 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 ...
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1answer
970 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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11 views

Dovecot/Postfix and mail vmail directory

I've setup a Postfix/Dovecot mail server. I'm using Postfixadmin to set up a SQL users database. My question is If I ever migrate to another server and I don't have the /var/vmail directory ...
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47 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. ...
2
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2answers
401 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 ...
3
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1answer
54 views

Disable postfix HELO checks completely

I'm trying to set up a mail relay for a cranky old voicemail system. I set up postfix on a vm, enabled relaying, verified that I can telnet to port 25 from the same subnet and send mail wherever I ...
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0answers
35 views

Problems with POSTFIX SMTP Auth [closed]

I'm having problems with Postfix SMTP. It's connected to dovecot and and I know dovecot is working because I can create an IMAP connection but not an SMTP connection. postconf -n output: ...
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1answer
457 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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1answer
18 views

Postfix or mutt changes subject string

I suspect that when I send a message to my postfix server with Re: in the beginning of the subject I get the following view in mutt: The first message containg Re: looks fine. But if I resend ...
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40 views

How to configure postfix to send mail to external SMTP server?

I have a machine with http://phabricator.org/ set up on it and I would like to set up postfix to enable e-mail sending to my company's mailboxes (as for notification emails coming from e.g. ...
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0answers
10 views

Can Postfix inbound TLS (smtpd) use a policy map to not enforce TLS for some hosts?

I have a Postfix server running submission on port 587 with mandatory TLS and SASL authentication. I want to allow clients on localhost to connect without using TLS and without authenticating. By ...
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1answer
384 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 ...
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1answer
789 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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1answer
65 views

Must issue a STARTTLS command first, even with it in main.cf

This is my first time setting up a linux server and I can't seem to get the email to work. Anytime I try to telnet and do the "mail from" command I get "540 5.7.0 Must issue a STARTTLS command first" ...
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3answers
9k views

How to create Maildir directory with enough permissions for Postfix?

I have CentOS 5.5 with Postfix installed on it. I want to use local delivery agent with default setting, but I want it to store mail with Maildir directory style mailboxes. When I set the mailboxes ...
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2answers
465 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 ...
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1answer
27 views

How to restrict helo to match the client's ip/domain

Postfix has some nice options to restrict client accesses with respect to DNS/IP address setup and helo names (documentation). For example one can instruct postfix to reject clients if the helo ...
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1answer
93 views

Mail server broken my LAMP installation

I was installing mail server, postfix/sendmail I suppose. Then I had no need to use it anymore so I removed it. But now when I type localhost in my browser it redirects me to https://mail.example.com. ...
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2answers
508 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 ...
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1answer
1k 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: ...
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1answer
311 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 ...
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1answer
34 views

Why doesn't Postfix reject a specific client's connection attempts?

My SMTP server is being probed. It looks like a brute force attach on SASL, where they're going through a password dictionary. Having seen thousands of these lines in the log files Sep 18 14:09:52 ...
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23 views

.forward file username and folder separator

I found (I'm learning how e-mail works) a .forward file in a user home folder; emails should be forwarded to mailboxes of other users. Email addresses are written in user+folder addressing notation, ...
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3answers
859 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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1answer
32 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 ...
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1answer
218 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 ...
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2answers
3k 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
277 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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83 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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26 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 ...
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1answer
275 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
66 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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42 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 ...
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3answers
5k 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 ...
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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 ...
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1answer
195 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 ...
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210 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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250 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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0answers
327 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 ...
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1answer
32 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. ...
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1answer
160 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 ...
4
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1answer
53 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, ...
3
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1answer
522 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 ...
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247 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 ...
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1answer
3k 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 ...