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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Help with postfix configuration

I started building this with postfix 2.11 and recently upgraded to 3.1.1 I have been working on my postfix configuation for a long time, and I have been wondering if this is right, and by that I mean ...
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1answer
135 views

Postfix/Rancid - Confused by terminology, /etc/aliases, and relaying mail from localhost

I want to send notifications from a non-domain linux server, to my corporate email, me@company.com. My main concern is receiving notifications from an installed instance of rancid. I am confused by ...
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1answer
27 views

[Solved]Postfix “Relay access denied”

I have built a new Postfix Server and have the following Problem. When I try to send a mail with the command "Mail" from another Server and the recipient is in another Domain i get "Relay access ...
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295 views

Postfix/Dovecot configuration Problem

I've a problem setting up my postfix with dovecot. After Login via Outlook and Thunderbird I'm getting a timeout. This is how my configuration looks like for postfix: postconf: warning: /etc/postfix/...
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1answer
34 views

/ Owned by postfix:root after installing iRedMail

I followed this tutorial to install iRedMail on my CentOS 7 x64 System: https://www.digitalocean.com/community/tutorials/how-to-install-iredmail-on-centos-6-5-x64 Why the *"$@*3 is / now owned by ...
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1answer
925 views

Sending emails from AutoMySQLBackup from Linux Mint

I have set AutoMySQLBackup on a Linux Mint machine and I want to have the backups sent to an email, but I cannot make it work. I'm new to Linux environment and don't understand it very much. I ...
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1answer
1k 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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15 views

Magento can't send mails using postfix on ubuntu

For some reason mail() function fails when we try to send emails, I debugged the Magento base code and I found that it generates a call to mail function like this: $result = mail('test@test.net', 'My ...
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3answers
2k views

mailx: nss-config-dir=/etc/pki/nssdb/: No such file or directory

I am trying to send email using mailx using remote SMTP server (in my case it is office365 SMTP Server). Here is the command: # echo "THis is the Body of the email" | mailx -v -s "This is email ...
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1answer
2k 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, let's say there are two members in that project userA@mailA.tld and userB@mailB.tld,...
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2answers
1k views

Postfix no longer logs to /var/log/mail after it has been deleted and re-created?

I accidentally deleted the /var/log/mail file. Until that point I was able to monitor it using postfix stuff. Now, it seems that Postfix doesn't send its logs to /var/log/mail, since the file is not ...
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1answer
51 views

send fake email using mail clients

assume that, you have a pop3 email address saved on your outlook or other mail clients, if you changed your user information in account setting like the following attachment you can send any@any.com ...
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37 views

Microsoft seems to block email from custom domain for any address except one

I have a VPS server at DigitalOcean with a domain. There is a postfix server and a mailman (mailing list server) running on it. Also my personnal email address is @hotmail.fr (nobody's perfect) but I ...
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1answer
797 views

How can I configure Postfix to silently drop/discard/reject mails that were sent from specific users to an external address?

How can I configure Postfix to silently drop/discard/reject mails that were sent from specific users to an external address? It should work only for specific users E.g: abc@localdomain can send ...
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0answers
42 views

ISPConfig mail: Relay access denied

I'm running CentOS 7 with ISPConfig 3. Mail was working perfectly, but now (probably due to some update) isn't working. I was trying to reinstall postfix, amavis and update ISPConfig, but I can't get ...
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2answers
1k 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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3answers
992 views

Dovecot with CAcert certificates, Outlook can't connect to IMAP

I have quite standard installation of postfix and dovecot on Ubuntu 12.10. I generated my own certificates and got them signed by cacert.org. The process of creating certs was like below: openssl ...
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1answer
16 views

Postfix forwarding using virtual settings

I have gone over multiple articles which walk me through the process - I feel I understand the what and the why's - but I cannot send a email to test. Here are the steps in detail. Here is a ...
3
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2answers
944 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 ...
0
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1answer
19 views

Postfix address remapping

My website contains a form (contact us) that send an email (WordPress via Ninjaforms). I've configured both ninja-form and postfix to send the email from myname@e-levelcom.com However it keeps sending ...
0
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1answer
873 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 /var/log/...
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0answers
24 views

Postfix mailbox_transport and mailbox_command

I have Postfix set up in main.cf to use mailbox_transport=lmtp:unix:private/dovecot-lmtp as LDA, which works fine. I also need to enable mailbox_command in order to pass internal sanity checks as ...
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2answers
3k 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: https://library.linode.com/email/postfix/postfix2.9.6-...
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1answer
973 views

Procmail: Denying special privileges for “/etc/procmailrcs/default.rc”

I'm trying to setup postfix, dovecot and procmail to work together with virtual users. In the end I want to have virtual users and the possibility to add rules to sort incoming rules. For the last ...
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0answers
19 views

Using mail spool file for an entry in /etc/aliases gives errors in EL7

For years (with EL6 and before), I have successfully used entries like this in my /etc/aliases file: bugs: /var/spool/mail/bugs The idea being mail to a non-user can be shoved into a file for ...
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1answer
37 views

postfix MX host not found

Im am trying to send mail using Postfix, but I get the following error for all emails: May 13 12:44:46 myhost postfix/qmgr[12169]: A6D9644526: from=<x@y.com>, size=317, nrcpt=1 (queue active) ...
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0answers
36 views

Email not received with mail command from terminal in CentOS

I am trying to send mail with the following command: echo "Hello" | mail -s "Hello" myaddr@mydomain.com and than checking the exit status as: echo $? which outputs 0 Of course myaddr and ...
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0answers
27 views

Change Postfix email recipient on Ubuntu 15.10

I installed Postfix on my Ubuntu machine and i'm using Gmail's SMTP to actually deliver the emails using this tutorial. This is the email headers: Reporting-MTA: dns; crmpicco-desktop X-Postfix-...
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1answer
34 views

Postfix smarthost sends as root

I have a Debian 8 test server that has only root. I have configured it to send emails with https://wiki.amahi.org/index.php/Gmail_As_Relay_On_Ubuntu by making use of a new gmail account eg atuxxxxx6@...
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2answers
32 views

IPV4 supportive mail function in linux

I'm working on a linux machine where changes are not allowed. But While I use sendmail function I'm getting following error. sendmail: warning: inet_protocols: IPv6 support is disabled: Address ...
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2answers
1k 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 status:...
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0answers
11 views

Postfix internal scheduling of email servers; loadbalancing and use cases

I've learned about the parameter smtp_randomize_addresses and am curious which use-cases where one would benefit to have the same priority for MX records and allow Postfix to randomly pick email ...
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1answer
6k 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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2answers
173 views

fetchmail doesn't get mail from provider

somehow can't get fetchmail to work properly... it wont get email from provider but it connects to properly # Configuration created Tue Feb 10 10:18:32 2015 by fetchmailconf 1.52 $Revision: 4636 $ ...
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5answers
17k views

Postfix doesn't send mail, complaining about “Host or domain name not found”

I followed these instructions in order to send mail and here's the Postfix log: Sep 26 00:46:24 tshepang postfix/smtpd[5728]: 8EE2464931: client=localhost[127.0.0.1] Sep 26 00:47:44 tshepang postfix/...
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1answer
54 views

Postfix: error while loading shared libraries: libmysqlclient.so.16 [closed]

postfix: error while loading shared libraries: libmysqlclient.so.16: cannot open shared object file: No such file or directory [root@localhost ~]# mysql -uroot -p*** -e "select version();" Warning:...
3
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1answer
41 views

how to adjust the boot sequence using systemd

I need to send email using postfix as server once wifi has received IP address (based on dhcpcd). It seems that systemd by default boot postfix before wifi (wlan0) is ready. The consequence associated ...
0
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1answer
56 views

postfix - unknown group: vmail

I have a VPS running Debian 8 in which I used this tutorial to set up. It is running dovecot and postfix. Recently I have started receiving errors every few minutes in my mail.err log file which look ...
3
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2answers
121 views

Install mdadm without postfix in ubuntu trusty

I want to build a RAID system on top of Ubuntu Trusty. When I do apt-get install mdadm A screen pop up asking me to configure postfix. Because I will run this installation in automation script. Is ...
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1answer
69 views

Why postfix doesn't verify the sender is who they say they are using reverse dns, SPF or DMARC?

Making sure postfix isn't an open relay, I tried to send a mail from my mail address towards my mail address, the telnet log goes like this: Resolving hostname... Connecting... SMTP -> FROM SERVER:...
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1answer
13 views

Include another file in Postfix proxy configuration

I am trying to configure Postfix with FreeIPA and need to provide the bind DN, base DN, password, servers etc. for LDAP proxies. These need to go into four different configuration files, making it a ...
2
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1answer
109 views

Mutt and Postfix : relay access denied

I try to send mail with Mutt through my own mail server. My mail server run Postfix and Dovecot. I configured it by following this tutorial. I can send / receive email on my server with Gnome ...
2
votes
1answer
1k views

CLIENT wrappermode (port smtps/465) is unimplemented

I am getting the following error when I try to send email using a relayhost from a CentOS 7 server using postfix: Oct 19 19:53:08 localhost postfix/pickup[7174]: 64DAF1A53CB: uid=1002 from=<me&...
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3answers
2k 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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0answers
34 views

Spam in Zimbra OpenRelay

First apologize me for the grammar, english isn't my native language. The problem I have is users from our local zimbra mail are getting spam messages from other email addresses who don't exist, like ...
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1answer
13 views

postfix&dovecot — adding some spam filter

I have setup my SMTP server (on a Linux/Ubuntu 15.04 VPS rented at OVH) according to http://www.binarytides.com/install-postfix-dovecot-debian/ (so there is no traditional user on the box; hence it ...
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1answer
59 views

is my newly setup mail server on my laptop hacked?

I have just installed postfix on Arch Linux. I am following Arch wiki to set aliases to set following line in /etc/postfix/aliases root: edward after this I ran postalias /etc/postfix/aliases and ...
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1answer
38 views

Postfix can not send from Mydomain - only to third party domains

So I have setup an Ubuntu server and want to use postfix in order to sendmail via php. The server host: example.com When the server sends an email to anything@example.com, I get an error. If sending ...
2
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1answer
99 views

Why does postfix copy /etc/resolv.conf to its chroot too early, causing DNS failures?

Edit: For anyone else having this problem, this question was actually was very badly asked/understood and a better description of the problem (and the correct solution) can be found here. I'm trying ...
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2answers
138 views

(Raspian) DHCP startup race conditions - lots of service failures at startup (no DNS for ~5-10 seconds)

(Edit: This applies to much more than postfix; it's just where I noticed/debugged it) I've installed postfix, but when it starts up and creates its chroot, it gets an empty copy of /etc/resolv.conf ...