Open source email server for Unix

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POSTFIX+OPENDKIM : How to reject untrusted domains without keeping mails in queue?

We needed to create a smtp server for our webapps. This server turns Under Ubuntu with Postfix and Opendkim. We have 40 domains with 40 DKIM keys. My config is the same as described here : ...
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24 views

454 4.7.1 relay access denied - can send mails but do not receive

i recently installed and configured in my vps a mail service, i can send mails using squirrelmail....but i can't send using outlook, and give this error (454 4.7.1 relay access denied)....i niether ...
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14 views

Joomla with postfix php mail not working

I am getting this error in mail.log (after trying to submit a contact form): fatal: Recipient addresses must be specified on the command line or via the -t option Its worth mentioning that I have ...
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1answer
44 views

Missing X-Spam-Status header

I recently upgraded to Ubuntu 14.04.1 LTS (trusty) and have followed the directions in https://help.ubuntu.com/14.04/serverguide/mail-filtering.html and am sending and receiving mail just fine. While ...
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14 views

Need help with Postfix canonical mapping

I’m having difficulty getting the canonical_maps function to work as needed to repair some incorrect addresses from a legacy client. Here’s the situation and what I’ve tried so far: Legacy client ...
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18 views

Ubuntu Zpanel Unable to receive e-mail

I am able to send e-mail from my zpanel mailboxes but am unable to receive any e-mails. I get this error from gmail when I try to send e-mail to my mailboxes: mail exchanger not found. My domain ...
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16 views

postfix sasl auth on Ubuntu server

I can connect to the mail server over telnet and send messages to local users without authentication. Is it the reject_unauth_destination parameter that permits this? What is the recommended practice ...
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27 views

Help by installing mail server with virtual host

04 and I find a lot of articles about installing mail server on Ubuntu but it is not working. Can you help me with some tutorial? I want to install and configure my own mail server with virtual users. ...
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28 views

Is there an email package that has a easy to use GUI?

I finally got Postfix installed and running, but adding / removing users etc isnt as easy as a web based tool. Is there any software packages I could install that would make managing email easier for ...
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49 views

Postfix Using Gmail Relay: Must issue a STARTTLS command first

I get this error: Must issue a STARTTLS command first with all sent mail. Can anyone see why? main.cf: relayhost=[smtp.gmail.com]:587 smtp_connection_cache_destinations= [smtp.gmail.com]:587 #TLS ...
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57 views

mail delivery errors - ssmtp, mailutils, postfix

Afternoon everyone, I do not run a mail server. I am only trying to send an email with an attachment via a bash script. I have been working for the past couple of days to get this up and running. ...
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37 views

PHP mail not working on Ubuntu server

I have set up a development server using Ubuntu Server. I have configured postfix to send mail and I am able to send mail through the command line using for example: echo testing | mail -s Bla ...
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1answer
31 views

A question on mysql command

I want to config postfix. I followed these instructions. On the first step I saw this mysql command: mysql > GRANT SELECT ON servermail.* TO 'usermail'@'127.0.0.1' IDENTIFIED BY 'mailpassword'; ...
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21 views

Postfix/Dovecot issue

I installed Postfix/Dovecot locally on Ubuntu server, I can mail from Ubuntu server to any user in my local users database (/etc/passwd) and I can receive messages well (by using mail command). On MUA ...
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24 views

Postfix - Unable to connect to remote host: Connection refused

I am running this command: telnet 87.106.xxx.xxx 25 And it says Trying 87.106.xxx.xxx... telnet: Unable to connect to remote host: Connection refused But telnet localhost is running properly. ...
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36 views

Corrupt PostFix Installv [SOLVED]

I accidently removed some files that postfix needs and now it will not install or uninstall have tried: sudo apt-get purge postfix sudo apt-get remove postfix sudo apt-get upgrade sudo apt-get ...
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82 views

Cron job not running - postfix/sendmail error

Here is my content of sudo crontab -e @hourly /home/userName/ntpdate.sh The content of my script (ntpdate.sh) //.25 is my ntp server echo "Current time is $(date), " >> ...
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7 views

POP3 Access to a Postfix based email system using Courier

I am trying to use courier-pop so I can access my email from 3rd party email clients such as Gmail that rely on pop3 based methods. I am recieving connection timeout errors trying to connect to my ...
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16 views

What is the difference between postfix and mailsutils?

I am attempting to set up an AWS EC2 with a simple mailing service for my crontab. And I have postfix set up, but when I used the "mail" command it did not work. So I installed mailutils as ubuntu ...
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126 views

postfix warning messages: override earlier entry

I have configured postfix with satellite configuration. I found the following warnings in my syslog. Any idea what it means? and How could I resolve this problem? Jul 16 13:39:24 mou-lanister ...
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1answer
69 views

Server side filtering - Courier, Postfix, Roundcube

I have a mail server running Postfix, Courier, and Roundcube. I'm looking to add the ability for a user to assign their own custom mail filters from the web. I haven't yet found a way I can do this, ...
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163 views

Fresh install of Postfix can send mail but not receive it. Which setting to tweak to receive mail?

My server is a VPS; I'm the only user on it. Although I'd eventually like to have multiple emails for my multiple domains, today I'd be happy to be able to receive mail on just one. Could someone ...
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40 views

How to integrate postfix/dovecote with Windows AD

I have postfix/dovecote Ubuntu server and it's working fine, also I have Active Directory Windows 2008, I want to make email clients to get authenticated from windows AD and automatically create ...
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Postfix suggests a bunch of other packages on install.What are they and should I install them?

Postfix suggests these packages on install: procmail postfix-mysql postfix-pgsql postfix-ldap postfix-pcre sasl2-bin dovecot-common postfix-cdb postfix-doc I know what procmail and dovecot are. ...
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58 views

How to test out the SMTP Server?

I am testing my SMTP Server through wormly.com When I do the test, I end up with > SMTP -> FROM SERVER: 250 2.1.0 Ok RCPT TO: mygmailaddress@gmail.com > SMTP -> FROM SERVER: 554 5.7.1 : ...
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93 views

Mail Server Postfix + Dovecot

I'm running mail server on Ubuntu 12.04 and box has Web Server + Mail Server (Postfix + Dovecot). This is Virtual Machine setup on Windows Azure cloud. Problem: I'm unable to send emails outside ...
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52 views

Configuring Gmail with Postfix

I am trying to configure Gmail with Postfix so I can sent emails via command line. this is mine /etc/postfix/main.cf alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases ...
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66 views

How to set up a mail server with multiple domains (12.04)

I'm the only user on my server, so the default install of postfix/dovecot has been fine until now. But I now have 4 domains and need an email address for each of them. I would like to be able to ...
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13 views

When Using A Dovecot and Postfix Cannot connect using a domain only IP Address?

I have setup a Postfix, Dovecot, and RoundCube Sever On Ubuntu 12.04.4 x64 and It works great. I can use my url mail.myurl.com and it points to my roundcube and i can send and receive email. If I use ...
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42 views

redirecting my mail server to another domain

I am not really familiar with Linux,that's why my questions might seem to be very easy for you. Currently I have a mail server on Ubuntu 12.04 (using Postfix) and Roundcube for web access, so our ...
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54 views

How to only accept e-mail from a single IP address

I am sure this is a simple question but I've been Googling for days now and am not making much progress, forgive me if this has been asked previously. I'm new to Linux and am still getting to grips ...
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2answers
41 views

basic outgoing mail function

I've looked for tutorials and guides about this topic but seems really complicated to make it work. I'm working with php, I would like to send mails in some scenarios such as password recovery and ...
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Kernel Upgrade - Now Postfix STARTTL “502 command not implemented”

Interesting issue. So I rebooted one of my servers to upgrade the kernel. It came back online (after having to reconfigure the network interfaces for some reason) and Postfix is no longer able to ...
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57 views

Forward root mail to external email address

I have a headless Ubuntu 14.04 machine which I'd like to configure to forward root mails to an external email address (gmail in this instance, not sure if that makes a difference). This is so that if ...
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1answer
63 views

Why can't I send emails from the command line to my gmail account

I'm using the command: echo "Test if email can be sent from server" | mail -s "Test" myaccount@gmail.com This is on an Ubuntu Server 12.04 completely up to date. To catch you up on my ...
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Configuring sendmail for several domain names

So here's the problem: I have a webserver that's currently serving quite a number of different domain names as virtual hosts for apache. Lets say the default domain is defaultdomain.com When I use ...
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29 views

No login possible with postfix/dovecot and mysql under IMAP

I did the following installation of my own mailserver with dovecot/postfix and MySQL: https://thomas-leister.de/internet/mailserver-ubuntu-server-dovecot-postfix-mysql/ If you see the section of ...
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64 views

Self-signed server certificate for Postfix TLS

I'm trying to create the self-signed server certificate for the Postfix user: thufir@dur:~$ thufir@dur:~$ sudo ./tls.script Error opening Private Key 3073578684:error:02001002:system ...
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61 views

Using Port 587 for Secure Submission

Testing from swaks, mail is delayed indefinitely. I believe that the local mail server is configured correctly, as per the ehlo responses: thufir@dur:~$ thufir@dur:~$ telnet localhost 25 Trying ...
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12 views

Mail reaches only after closing connection

I have setup a postfix mail server with saslauthd. I telnet from a windows machine to send a mail. All works fine, I even get the msg 250 Mail queued for delivery. On the mailserver I see connect msgs ...
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514 views

Postfix PostgreSQL Dovecot SASL Authentication Fails Ubuntu 14.04LTS Server

I previously setup my mail server using Ubuntu 12.04LTS and all worked fine (see Postfix Dovecot SASL Authentication not enabled/working ubuntu 12.04 server), but I recently moved everything to new ...
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50 views

postfix Self-signed server certificate syntax ( versus snakeoil)

The Postfix quick start guide on TLS gives: Self-signed server certificate The following commands (credits: Viktor Dukhovni) generate and install a private key and 10-year self-signed certificate ...
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20 views

postfix smtpd.key creation

The ubuntu documentation on postfix gives: Generate certificates to be used for TLS encryption and/or certificate Authentication: touch smtpd.key chmod 600 smtpd.key openssl genrsa 1024 > ...
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30 views

how to receive e-mail on a vanity host (FQDN)

This e-mail shows in my sent messages, but never arrives locally: thufir@dur:~$ thufir@dur:~$ thufir@dur:~$ mail -f /home/thufir/Maildir/ /home/thufir/Maildir/: 0 messages thufir@dur:~$ ...
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148 views

How does postfix send mail without smtp settings?

I am running vagrant. In it, I have Ubuntu 14.04 server and installed postfix. I am able to send email using sendmail someone@gmail.com (after typing in body etc.) This works. How is postfix able to ...
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270 views

Dovecot Postfix not working when using a CA Certificate

I am having a problem switching from using a self signed certificate in Dovecot/Postfix to using one I got from a CA. It is a password protected key and this is my Dovecot ssl config file. ...
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99 views

Postfix / Dovecot / MySQL- doesn't work!

I have just installed a Mail- Server on Postfix and Dovecot using MySQL to authenticate the user. But if I try to conntect to the Server via Outlook or Thunderbird, the following Error appears in the ...
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114 views

Unable to connect to mail server via IMAP and roundcube

I am having trouble getting the final parts of my mail server up and working. I followed this tutorial to get everything set up on the mail server side. I have installed roundcube for webmail and ...
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33 views

Postfix and Ownclound mysql authentication

i'm using ubuntu 12.04 with roundcube/postfix and owncloud installed, and using mysql as login authentication. i would like to know if it's possible to make single login for these apps (without LDAP) ...
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49 views

Postfix 554 5.7.1

I have a Cloud instance of Ubuntu Server 10.04, Kernel ver. 2.6.32-363-ec2 (2.6.32-363.77). I am having quite an issue recieving email from other domains. I have been running test email from Gmail and ...