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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2
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1answer
39 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 ...
1
vote
1answer
35 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 ...
0
votes
1answer
76 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 ...
0
votes
0answers
40 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 ...
1
vote
0answers
63 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
vote
1answer
33 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. ...
0
votes
0answers
15 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 ...
3
votes
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
votes
1answer
64 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 ...
7
votes
0answers
53 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 ...
1
vote
1answer
71 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 ...
6
votes
1answer
32 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
votes
1answer
71 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
votes
0answers
58 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 ...
2
votes
0answers
30 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
votes
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
votes
3answers
100 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 ...
1
vote
0answers
23 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?
0
votes
0answers
25 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
vote
1answer
64 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 ...
1
vote
1answer
41 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
votes
0answers
210 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: ...
1
vote
0answers
76 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 ...
0
votes
0answers
11 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 ...
1
vote
1answer
899 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 ...
1
vote
0answers
109 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 ...
0
votes
0answers
30 views

Postfix does not respond after “Mail From”

I have a VPS with Linux on it, and Plesk. The /proc/version file has (Red Hat 4.4.6-4) in it. The mailer is Postfix, but it isn't working, if I telnet in to port 25: I Get the banner I do HELO I ...
0
votes
1answer
25 views

Whitelist virtual_alias_maps

I have one mailbox in postfix and several aliases to it. Is it possible to create whitelists for specific alias in order to allow only the addresses from the list to send messages. For example: ...
0
votes
1answer
60 views

Manually interacting with postfix mail queue

I need to manually be able to interact (check, remove, etc) with the postfix mail queue (through scripts and what-not). I know that this generally is a bad idea; so how can I interact with the queue ...
1
vote
0answers
31 views

Deliver emails outside network, from a server behind router DNS and port forwarding

I've been trying to configure webserver to deliver emails outside the local network. Server is connected directly to the router and relay on its DNS service, and one of that online service for resolve ...
5
votes
1answer
181 views

simple script for monitoring a mailserver

I would like to use a simple bash script (python would be second best) to monitor regularly (hourly) if my mailserver is online and operating. I know that there are dedicated solutions for this task ...
2
votes
1answer
106 views

Postfix Relay Multiple Domains with Multiple Origins

I currently have Postfix relaying multiple hosted customer solutions which all works as expected. There are no local accounts and it is used solely as a relay server. In the config I have the ...
1
vote
2answers
861 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 ...
1
vote
0answers
56 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 ...
0
votes
0answers
170 views

Postfix: restrict all external access but allow for only mynetworks

How can I restrict access for an internal domain but allow all access for me the administrator? All users should be blocked from communicating outbound and no external domain may contact them, but I ...
1
vote
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
votes
1answer
80 views

Block local (unix) users from sending mail

Is there a way to block a local/unix user (or a list of local users) from sending mails via mail command (or maybe even in postfix, which is the MTA I have).
0
votes
1answer
810 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
votes
1answer
163 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 ...
1
vote
1answer
96 views

Create a Filter for Postfix on Virtual Mails

This is what I am trying to do: I have a server using Postfix on a Ubuntu precise 64bits and I have a table list of emails in /etc/postfix/virtual, like this: artz@mydomain.com artz@gmail.com ...
0
votes
1answer
21 views

Disabling sentbox in postfix over Squirrelmail

I have installed POSTFIX over Squirrelmail on CentOS Linux... The services I have ran are: service httpd service ssl service mysql service postfix service saslauthd service dovecot But I want to ...
1
vote
3answers
529 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 ...
1
vote
1answer
44 views

How to get list of members subscribed to a list - Mailman

I have an Ubuntu server with Postfix and the Mailman list manager. My server stopped working, so I need to find a way to list the emails registered on the list of the Mailman. Note: I was able to ...
0
votes
1answer
56 views

Routing an Email from my server

I am a C# programmer and doing an internship as a programmer, where i have to work with linux, which I've never done before. I have installed and configured postfix successfully on a Linux server ...
1
vote
3answers
515 views

Postfix, SMTP Server, PHPMailer

I have an PHP Forum (vanilla forums) and for its registration emails I installed Postfix. Now As I figured it out, vanilla forums uses PHPMailer for email sending procedure. Now my questions are: ...
1
vote
0answers
162 views

Cannot configure Postfix to receive mail

I try to configure Postfix on CentOs 6. I can send mails from the server just fine, but cannot receive. The Delivery Status Notification that I get is: The error that the other server returned was: ...
2
votes
1answer
50 views

How to identify faked mail origin?

Today while setting up a mail server using postfix, I practiced to use sender_canonical_maps option, and noticed that it can change outgoing mail "sender" to appear like someone else. When Gmail ...
0
votes
0answers
107 views

Mail queue keep growing

My server keeps running short on inodes due the mail queue getting crazy. First, I assumed I had postfix not configured properly, so I switched it off. But, it happened again, last time I did it I had ...
0
votes
0answers
79 views

How can I configure postfix to send mail from my domain?

I currently have a VPS set up with postfix and dovecot, running on a mail server located at mail.noelforte.com. The setup works fine for receiving mail, as whenever mail is sent to @noelforte.com, the ...
1
vote
2answers
263 views

Why access file is being ignored by Postfix?

I have installed Postfix, I can send mails between local users as expected, but I would try to limit the access of a particular user to the server. I edited the /etc/postfix/access file in this way: ...