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 virtual_transport vs mailbox_transport

Whats the difference between mailbox_transport key and virtual_transport key? In old examples I've seen virtual_transport used but it did not seem to work on my Ubuntu 14.04 system, whereas ...
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19 views

How to test spamming mail server

I've recently configured a mail server which sends emails with SASL authentication. Emails are sent primarily through php scripts using Pear. This is all working fine and dandy however I have seen ...
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16 views

Postfix with smtp authentication failing

I'm currently in the process of updating my new server to do the same tasks as my original older server (new server is running Debian wheezy, old server is running Debian squeeze). The issue I'm ...
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1answer
46 views

how to prevent cron job email splitting into multiple lines

CRON has emailed me the extract below : May 12 04:27:54 rpi postfix/smtpd[9343]: NOQUEUE: reject: RCPT from unknown[95.211.213.214]: 504 5.5.2 <WIN-HBAL58UG0JH>: Helo command rejected: need ...
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1answer
32 views

How to change the email address Postfix sends out as

I currently use Postfix on an Ubuntu machine that uses Nagios for monitoring. I'd like to change the email address that Postfix uses to send out. Postfix just relays all its email through our ...
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33 views

Postfix connecting to itself

I have a weird issue with my postfix installation, also I'm having troubles to debug it because I'm new to the topic. When I check my log lines: postfix/smtp[29663]: A929510E76D9: ...
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8 views

Trouble with postfix configuration to communicate with ruby application

This could be such a wide range of things but i hope posting here would narrow it down, i have this application installed and running in a web browser https://bitbucket.org/naushniki/qamail/src and ...
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32 views

Centos 6 and postfix: Internal emails deferred / telnet timed out from SSH

The problem is, that I have a VPS with centOS 6 installed, and I can send emails to anyone, but my own exchange server, Apr 29 11:50:30 amazonnet postfix/smtp[16535]: 2B6FF3CC49A: to=, ...
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32 views

Postfix/Dovecot import mail from Gmail

I setup an iRedMail server on Ubuntu 14.04. My company currently uses Gmail but wants to switch to a cheaper solution. I set up the server with an LDAP DB, and I'm using Postfix and Dovecot for the ...
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24 views

Postfix problem with sending and receiving emails

I have had problems for one week with the email server Postfix. This came after running the antivirus ClamAV with the remove option on. When reading the mail log I keep getting the error message ...
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1answer
57 views

Postfix Mail Relay Server with TLS

I currently have Postfix set up on a Centos 6 server, as a simple forwarding service. Currently in /etc/postfix/main.cf I have set the following: smtpd_client_restrictions = ...
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36 views

Fail2Ban: Sending Mails with CentOS 7 using postfix

I am seeking advise on how to get Fail2Ban installed and configured on CentOS7 using firewalld and postfix for sending reports. I am not in need and even don't want having a fully featured mail server ...
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1answer
43 views

Displaying emails with mutt

After being able to retrieve emails from an IMAP account on a remote mail server using fetchmail and POSTFIX as an MTA, I am able to see the emails in the spool folder /var/spool/mail/ghassan in a ...
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1answer
103 views

Problems with postfix/dovecot unable to receive mail

Can't receive mail on my server but can send just fine. From what I can tell in the logs, it complains about timing out. I check the connection externally using telnet from my PC, I can connect to ...
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1answer
26 views

Postfix rejecting everyhing

For some reason postfix is rejecting sending mails and I can't get why. Here are relevant lines of what I used at the beginning: smtpd_recipient_restrictions = check_policy_service ...
2
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1answer
82 views

How to prevent bounce of SMTPUTF8 emails

After updating postfix to 3.0, emails with UTF-8 chars in there subjects, are stuck in queue, with the following error: SMTPUTF8 is required, but was not offered by host mail.example.com ...
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23 views

how to use postfix alias for sending email

I am not this question has been asked or not, I have postfix running with MySQL and recently i have created "support@example.com" alias email to multiple folks get email, just like distribution list. ...
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21 views

How to configure dbox mail storage format for a single mail account?

I'm using ldap database at backend and I want to configure my mail server such a way that one mail id i.e. info@domain.au will be stored as dbox format while other mails will be stored in maildir ...
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24 views

IMAP login not recognizing SASL while simple postfix send is

I've got SASLAuthd working (via LDAP), and am also successfully able to telnet via port 25 with my LDAP credentials. Postfix is configured with Dovecot. All 3 services are running fine (Postfix, ...
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1answer
30 views

Looking for an email server that supports mysql ssl connection

I am trying to secure connections to my MySQL server. I have SSL set up but I am looking for programs that support a SSL connection to MySQL. Specifically I am currently looking for an email server ...
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20 views

Postfix: Send bounce message instead of NOQUEUE/error code

So I know this goes against default behavior and is technically backscatter, but this is what I need to do: Instead of an invalid user being rejected early in the SMTP chat with an error like this ...
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1answer
70 views

Find all the PHP scripts with email in my postfix mail queue

How do I find all the scripts that have mail sitting in my postfix mail queue? This server is sending out spam and I've spot checked it, but I want to make sure I haven't missed any scripts that may ...
2
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1answer
29 views

Tool to list every e-mail detail sent from a server

Introduction: I have a specific problem with an Ubuntu server where some security leak allowed spammers to use the server to send e-mail. I fixed most of the problems (caused by some unsecured ...
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98 views

All mail sent by Postfix is received as spam

I have a dedicated server on Server4You. The machine has Debian 7.8 and Plesk 11.5.30. On the server I have 2 web sites , each with its respective IP address. The problem is that all mail I send is ...
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91 views

Ubuntu Postfix Open LDAP integration - no SASL authentication mechanisms

Ive followed all the steps in https://help.ubuntu.com/community/Postfix/DovecotLDAP but I am getting a localhost postfix/smtpd[12520]: fatal: no SASL authentication mechanisms in my ...
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23 views

Flush Postfix mail queue

I'm running an old version of Postix (1.1.7) on my Red Hat Linux and I wanted to flush the e-mails from a specific recipient with postsuper, which comes with the postfix-perl-scripts package. However, ...
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2answers
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Can't find emails retrieved by fetchmail

So I set up fetchmail to retrieve emails with IMAP from a remote mail server, I was able to run it. How can I know that it found any emails or not since I did send test emails to the account being ...
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38 views

postfix some users can send mail to the (distribution lists) and other users not

How can I do the following things: Some users can send mail to the mailing list (distribution lists) and other users not. For example: the everyone@mycomp.com will be able to send e-mails only for ...
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23 views

Mail exchange software

I need to allow users of my site to write emails to each other, without revealing their email addresses. Here’s an example: user1@gmail.com sends an email to user2-alias@mydomain.com, user2@gmail.com ...
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27 views

DBmail / Postfix | Mailing between my own mail adresses

I am trying to send an email from address1.com to address2.com. Both email addresses are hosted on my server. The mail cannot be send. Sending from:to MYSERVER -> EXTERNAL SERVER = WORKING EXTERNAL ...
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181 views

Postfix alias for root not working in SUSE

First try I've set up multiple servers running Postfix. To get a general grasp of the state of the machine I usually redirect e-mail for root to my normal adress. I recently installed SUSE and ...
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1answer
35 views

Postfix Dovecot unix Error : missing '=' after attribute

According to multiple documents like https://help.ubuntu.com/community/Postfix/DovecotLDAP One of the configuration lines is: dovecot unix - n n - - pipe ...
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18 views

postfix email distribution list with physical account

I have postfix-2.11 running with mysql. I have special requirement about creating group email, just like distribution list. support@example.com -> user1, user2, user3 I have used ...
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1answer
51 views

cron and at send mail to wrong user

I have cron and sometimes at on an ubuntu 14.04. jobs output should be mail to me, but failed. I make a .forward in my home dir. mail explicitly send to local unix user is forwarded to my corp mail ...
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1answer
87 views

How to search mail logs effectively with `RegEx`

I was looking for some advice and examples on searching mail log effectively Suppose situation is like this -------- Forwarded Message -------- Subject: Fwd: Re: Notice of Allowance Date: Fri, 13 ...
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75 views

Dbmail / Postfix Send mail to local adress

I have a FreeBSD Server with Postfix and DBmail. The mail system is working perfectly except for one thing: I cannnot send an email from domain1.com to domain2.com if they are both hosted on the same ...
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1answer
29 views

Postfix / Dovecot Mail appears in logs, but not in its respective folder

I'm currently trying to set up Postfix with Dovecot, but something does not seem to work the way it should be. For some reason, mails I sent to my mail account appear in the logs, but do not become ...
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24 views

Accept mails only for a certain address with Postfix

How do you configure a mail server to only accept mails on a certain address? For example, my mail server should only accept mail on example@myths.ops and not example@harpy.myths.ops. I've looked ...
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20 views

Postfixadmin keeps loading while adding mailbox

I have configured postfixadmin 2.92. While adding mailbox postfixadmin keeps on loading and does not return any information like mailbox is created. But in mysql the mailbox has been added. Later when ...
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1answer
35 views

FreeBSD Reinstall postfix with mysql support

I have installed postfix using the ports tree without making modifications to anything. In my main.cf file i can't specify any 'Mysql:/' arguments because postfix does not have mysql support. Now i ...
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1answer
583 views

setting up a relay port for postfix smtp on CentOS 7

A CentOS 7 server has postfix, dovecot, and mailx installed. I am able to make an IMAP connection to the server from my remote Thunderbird client running on my local devbox. But I am not able to ...
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1answer
66 views

postfix logs: SMTP sessions stopping after RCPT TO

I took a look at my postfix logs and I've noticed an odd occurrence lately: SMTP sessions that seem to end right after the RCPT TO, as such: postfix/smtpd[11333]: > unknown[XXX.XXX.238.86]: 220 ...
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1answer
160 views

Relay access denied when using SMTP to external recipients POSTFIX FREEBSD

i am trying to send an email with my freebsd server using postfix and dbmail to an external adress. I have noticed the following things: MYSERVER -> MYSERVER = OKAY EXTERNALSERVER -> MYSERVER = ...
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1answer
52 views

Multithreading in Mail server (Postfix)

I need to perform multithreading on postfix mail server. I read about POSIX multithreading but could it be linked to postfix smtp server and if yes then how? System Specification: ubuntu 14.04 LTS and ...
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34 views

DBmail / Postfix : Relay Acces Denied

I am currently setting up a FreeBSD mail server with DBmail and Postfix. When i try to send an email from Hotmail.com to my server is gives this error: Feb 28 10:53:31 keroth postfix/smtpd[1848]: ...
2
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1answer
125 views

Test if postfix is running

I'm searching for a reliable way to test if postfix is running from inside a bash script. My first attempt was simply trying pidof postfix, which doesn't work. Then I tried to get the postfix ...
2
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1answer
976 views

postfix smtp connection timed out, why?

A CentOS 7 web server has postfix, dovecot, and mailx installed. I have been able to make an IMAP connection to the server in order to read inbox mail using a remote Thunderbird client, but I am not ...
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1answer
51 views

On Linux, what is the “mail” user account for?

The title says it all; there's an account mail and a group by the same name on my system, what's its purpose ? It owns the /var/spool/mail directory (empty currently). I plan to use that directory, ...
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1answer
35 views

FreeBSD dbmail , postfix port 110 error (220)

I am currently setting up a FreeBSD mail server with DBMAIL and Postfix. I have forwarded port 25,110 and 587 to this server. When I try to log in using pop3 on port 110 my mail program does not find ...
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1answer
122 views

Sending mail via cron doesn't work

We have an rsync script for making a backup from server 1 to server 2. The server is Centos-type, Amazon Linux AMI. The script is executed daily via crontab. The backup is made, so cron runs and the ...