Open source email server for Unix

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Mail Server send spams

My mail server got black-listed on Barracuda for some reason, how to make sure if my mail server is sending spams or if some script on it is sending bulk mails/spamming ?
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373 views

How to install cluebringer on 14.04

I've done an install of Ubuntu 14.04 on a system which will act as a mail server. One of the bits I want to install is "Cluebringer" policy daemon. I can see there are postfix-cluebringer packages, ...
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537 views

Corrupt PostFix Installv

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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78 views

Running both sendmail and postfix on Ubuntu

I have a requirement to use both Sendmail (MTA) and Postfix on a mailserver. This is because many of the legacy sendmail.mc rules cannot be migrated to postfix and provide high performance. So I ...
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275 views

Setting up Postfix with Apache Virtual Hosts?

So, I was trying to setup multiple Apache Virtual Hosts. Everything was O.K, LAMP worked fine except for one and big problem: Postfix. I have two domains. And two PHP/MySQL applications running on ...
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2k views

Postfix cannot resolve local IPs from Name Server

I currently have a server running "Ubuntu Server 12.04.1 LTS" installed with Postfix Bind 9 (Slave) The postfix cannot seem to resolve my internal IPs to Name Server (PTR) entry I have within ...
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12 views

Postfix logs to remote server

On my Ubuntu 14.04 server, I'm using Postfix as a front-end mailserver, and I would like to send all mail related info, including email addresses, to a remote host. In the file ...
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23 views

Mail and dhcp server in a closed network

Here is my needs; I need a mailserver (with one account) that can receive mails from several other systems on a closed network (no internet access after installation) and two network interfaces. ...
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40 views

Configure Postfix to use port 201

I am not a guru of linux and advanced configuration and this might be a silly question but how am I going to configure postfix (smtp) to use port 201 in same time with 25, on an Ubuntu 12.04 server. ...
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113 views

Adding my domain's email in gmail for “Send mail as” gmail feature

I have email set up on my Ubuntu server and when I do dig mydomain.com mx the output is: ;; ANSWER SECTION: mydomain.com. 86400 IN MX 10 mail.mydomain.com. Now when I'm using gmail, I ...
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289 views

configure postfix so emails will send

I am trying to use postfix simply to allow my blog to send emails, I don't need anything fancy like webmail. All I want it to do is send me messages to my gmail or google apps accounts. I've tried ...
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21 views

Platforms to Email connection

I have a domain name with GoDaddy and self-managed VPS (Ubuntu 14.10) with different company. I'm still new when it comes to using anything but cPanel. If only I knew about the pure awesomeness of ...
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51 views

Can't change default port of a service (apache2 & postfix)

When trying to set up a server I stumbled upon a terrible problem: I can't seem to change a service's default port. I have tried to change Apache2's & postfix's default port and all I get (with ...
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144 views

Postfix configuration with antispam

I have postfix with anti spam and when anti spam returns status 554 (spam mail) to postfix the mail is bounced to the sender. Is there a way to decide another action for postfix for 554 like reject. ...
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286 views

INSTALLING POSTFIX: VDA patch

I am trying to install the VDA POSTFIX patch on a server (http://vda.sourceforge.net/) without success. I downloaded it: wget http://vda.sourceforge.net/VDA/postfix-vda-v13-2.10.0.patch cd ...
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5k views

Postfix - SMTP mail delivery failed with “Connection timed out” error

I have installed postfix mail server in ubuntu machine. I am facing some issues with the mail sending to other domain mail servers (Google, Yahoo, Outlook...). I am using virtual domain to send the ...
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61 views

Setting up postfix

I am trying to setup mail server on my Amazon EC2 following this guide. But when I came by step 12, I ran into a problem, that it does not seems to have 250-mail.domain.com in the ehlo-result? Which ...
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273 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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86 views

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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174 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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302 views

SMTP mail server with postfix/dovecot does not require authentication

I have a mail server with postfix and dovecot with which I'm able to receive mail at my email address. When I'm connecting from a remote mail client via POP3 it is saying authentication failed even ...
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1k views

Postfix/SSL/Dovecote - can't send email

I know this looks similar to other questions on this forum, but they don't seem to be the same core problem as the one I'm experiencing. I'm running Ubunto 14.04 LTS, and I have postfix, dovecote ...
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419 views

Simple Linux mailserver for sending “notification” emails

I am looking to set up a simple postfix server on Ubuntu server 12.04 to use for "notifications" from simple equipment like UPS devices. My company is moving to an external hosted provider for our ...
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468 views

12.04 Opendkim no key found

Setup Postfix and Dovecot with OpenDKIM. I am not getting key found. Below are the postconf and opendkim file configs. postconf -n root@mysite:~# postconf -n alias_database = hash:/etc/aliases ...
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2k views

How do I use postfix to send outgoing email?

I am trying to set up postfix as an outgoing mail server for my domain. Mainly I need postfix to run as a server to simply send outgoing mail for some CMS software on the site (e.g.: user ...
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102 views

Installing and maintaining email server

Until now, I've been using managed shared hosting, but recently I've been seriously considering moving everything to a VPS, such as Linode. The one thing that has me really hesitating is that I must ...
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2k views

Postfix mail for mydomain.com loops back to myself Problem

I'm using vps server with ubuntu 10.04 when i send email to Gmail it's ok but for Hotmail fails, i check my logs i find this: Mar 19 18:09:01 mail postfix/smtp[6340]: 8FAF722294: ...
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793 views

Postfix master.lock: permission denied

I'm triyng setup the postfix, but with no success. I am using webmin to configure. my problem is that postfix won't start, always with the same message: Mar 19 19:21:13 site ...
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5 views

Use “mail” and send the mail by a TOR network

I want to send a mail using tor network. I am using postfix for smtp. I am able to successfully send mails to users using postfix and i intend to experiment this.
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17 views

Ubuntu 16.04 server ports are closing on their own

I am running squirrelmail, apache2, and postfix on Ubuntu 16.04 server edition. The server works fine, but if I don't use it for about an hour port 80 and 25 become closed for anyone trying to connect ...
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7 views

Can not use POSTFIX to send mail out

So basicly what im trying to do is send out an email from my friend computer out to my gmail. I have been guiding him on how to setup Postfix (Guide: ...
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21 views

Postfix: No route to host

I'm having a problem while using postfix and trying to send a mail to a Gmail account. mailq output: -Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient------- 670A21A0F59 374 Wed Apr 20 ...
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31 views

Ubuntu 14 - mysterious entries in Auth log

I have an Ubuntu 14 email server using postfix, mysql, amavisd, courier, spamassassin, clamAV and SASL. All seems to be working Ok, but I have noticed dome dodgy looking entries in my Auth.log. Here ...
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20 views

Postfix - add footer to email with altermime

my goal is to add footer (disclaimer) for every email which pass Postfix as SMTP server (running Zentyal 4.2 on Ubuntu as mail server). I was using this tutorial (and many more, but all the same in ...
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22 views

Pipe all incoming emails to script and then delete it

I am looking for a method to pipe all incoming emails to a script. When I say all incoming emails, I mean from any domain since my server will be listening to multiple domain names. I have not yet ...
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20 views

Sending an email with PHP

I'm having a lot of trouble setting up a mail service on Ubuntu 14.04 I've tried sendmail, but despite following literally 15 different guides on how to set it up, it doesn't work (from the command ...
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3 views

postfix disabled but logs filling up with postfix messages

I don't need or want postfix running on my server. If I try to uninstall it, synaptic wants to remove things that I do want, so that isn't an option. I have attempted to disable it with sudo ...
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7 views

smtp authentication

I am running postfix and dovecot. The smtp server does not allow me to send out email, gives me the relaying ddenied error. I know i need to enable smtp authentication/sasl. What would be the ...
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41 views

Dovecot/Postfix, how to block anonymous login? (SMTP)

I'm using ispconfig, dovecot, postfix for my mailserver. Is there any way to block someone sending mails without any auth? This is how it looks when I SMTP from my client to my mailserver like this: ...
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449 views

Getting spam emails from myself (www-data & user)?

recently I've been getting spam mails from my own server from my MAINUSER and www-data. I replaced: my name = "MAINUSER" mail server = "MAILSERVERDOMAIN" The headers are: Return-Path: ...
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30 views

Can't get Postfix to send emails

I am new to being a system administrator and this is my first VPS I am setting up. I'm not new, so I do manage to have everything except emails working. I have installed postfix and mail-utils and ...
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0answers
23 views

Postfix is sending emails signed and coded and everything is fine but not when the server sends using php mail function

First of all I must say I have searched a lot for the answer and I am stuck with this problem since 3 days. Postfix is sending emails signed and everything is fine but not when the server sends ...
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33 views

Virtual user mail server setup

I have tried multiple times to setup a mail server that uses a mysql backend on ubuntu 14.04 LTS, I have used this guide: ...
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18 views

Problem with Postfix on Ubuntu 14

I have set up a simple postfix on Ubuntu 14. It works fine when sending mail using mail from the command line. However when I send from python on the same server, I get: match_hostname: ...
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28 views

crontab MAILTO does not use encryption

I have a Postfix + Dovecot server running normally. Would I like to crontab send error logs to my personal email. I created a root@mydomain.com email to the crontab, emails are sent normally, but do ...
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29 views

quota report for maildir size

when I run script quota_notify for notifying maildir size for each user in postfix the report contain old users new users don't appear. I found file called maildirsize in old users directories but new ...
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postconf -d not updating after service postfix reload

I am trying to update postfix main.cf using the commands, postconf -ev disable_vrfy_command=yes service postfix reload but when I check postconf -d I still get disable_vrfy_command=no. I also ...
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VPS with multiple hosts postfix configuration

a VPS running Ubuntu 14.04 has postfix installed for outgoing e-mail. File /etc/postfix/main.cf has the myhostname value set to one specific MX record. This VPS is intended to host multiple Rails ...
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62 views

Postfix not rejecting mails without DKIM signature

I have configured DKIM using Postfix and OpenDKIM for my email domain. (I followed this tutorial.) Sending works I fine, but I noticed that Postfix is not rejecting incoming spam mails that use my ...
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48 views

250-STARTTLS missing from telnet test for SASL & Postfix

i was trying to set up a mailserver on my webserver. i followed this tutorial on help.ubuntu.com to accomplish this. But when it says to check via telnet localhost 25 and ehlo localhost, i dont get ...