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, dovecot, rainloop, can't log in

I configured dovecot, postfix and squirellmail - everything works just fine i can send and receive emails. It's Debian Jessie 64 on ovh hosting (VPS SSD 3) I went one step ahead and i want to use ...
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13 views

Help with postfix configuration [on hold]

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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28 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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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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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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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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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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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 ...
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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 ...
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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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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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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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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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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 ...
2
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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:...
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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 ...
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
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 ...
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35 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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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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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 ...
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2answers
79 views

Does postfix using mail command report if an email was unable to be sent to an address?

I am writing a program that will be sending external emails using postfix with the mail -s command and I need to verify that the email was sent to the specified address. In which case, I am curious ...
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2answers
139 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 ...
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1answer
101 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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1answer
52 views

How do I debug email delivery delays?

In order to get notified about some stuff going on on a server, I use simple mailutils command executed @hourly by cron: cat $file | mail -s "Subject" $receivers where $receivers is a list of a few ...
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31 views

Postfix sending hostname needs to be different for different domains

We have an application that generates outbound email for a range of domains. The app servers connect to a part of Postfix servers in a DMZ and these then forward on to filtering in a second DMZ. We ...
4
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2answers
124 views

OS X Postfix no TLS found

I'm working on OSX El Capitan. About week ago everything worked fine, but then I changed my gmail password and now I can't send emails any more. Additional configuration for /etc/postfix/main.cf is: ...
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2answers
250 views

Sending HTML using mailx with postfix 2.6.6 and centOS 6.4 [duplicate]

I'm trying to send an HTML email from our CentOS server to users. In the long run I'll be building a COBOL program that runs the command to send reports to the user. Here are a few details. ...
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2answers
67 views

Is it possible to redirect root email to axigen internal e-mail?

For a few month I've been using Axigen webmail as my main e-mail server. For the last month I was looking for a way of redirecting my root e-mail, as well as my crontab outputs into an internal ...
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1answer
90 views

Postfix using external smtp server problem

I am not sure if this is the right stack exchange for my question, there are multiple stack exchange were my question might fit. I have setup my postfix configuration to send my emails through an ...
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2answers
96 views

Forward Postfix mail based on regexp

We are buildng a ticket system using PHP. We have now bumped into the problem of identifying customer replies. Placing an id in the subject will not do because users could remove this. Posting an id ...
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2answers
135 views

Change user maildir to custom location upon creation of the user

I use Ubuntu 14.04.3 LTS . How to change the location of the Mailbox /home/user/Maildir/ to /Location/Mail/? I dont have to create home directory for that user. I did some changes in the /etc/default/...
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2answers
163 views

Postfix: Remove References to Server Software

Every time my postfix servers sent emails at the destination the emails headers include the following: by suppaserver.example.dev (Postfix) with ESMTPSA id 79D412E1A3A How can I remove the (Postfix)...
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1answer
104 views

Postfix: Users impersonating other users at same domain

I've a postfix email server running and everything was fine... well until someone decided to impersonate other users. The current situation is: user1@mydomain.dev can send email with a faked from ...
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74 views

Mark emails on my mail server as read

I have a Virtual Private Server, running a mail server for my domain. I use postfix and dovecot. I'm using IMAP. On my MacBook, I can retrieve my mails using the default app Mail. However, every time ...
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13 views

postfix forward throttling

I have some problem with throttling for my mail system. main.cf initial_destination_concurrency = 1 default_destination_concurrency_limit = 1 default_destination_recipient_limit = 2 ...
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2answers
46 views

Control character handling in cron/mailx

I have a cron job which runs a long script producing lots of output. Some of the output is lines delimited by single carriage returns; when run from the command line, these make the successive lines ...
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71 views

Scan outgoing Postfix email for spam with Spamassassin

Is there a way to filter outgoing Postfix email for spam possibly with Spamassassin? I found this answer about how to do it with Amavis but it's terribly outdated and not very well explained.
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1answer
476 views

postfix log messages: RBL lookup error: Host or domain name not found

I'm finding quite a few of these types of messages in my postfix log: 17:40:55 smtpd: warning: 34.77.82.185.b.barracudacentral.org: RBL lookup error: Host or domain name not found. Name service error ...
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68 views

Postfix: Outgoing Email Filter + Deliver sent email to a folder

I'm running a filter for incoming email on Postfix that basically sends the email through SpamAssassin and then delivers it to the user by using dovecot-lda. This is happening by editing Postfix's ...
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 ...
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1answer
73 views

Serve mail for multiple domains on a single server?

I am running a Debian Jessie 8.1 server with a functioning postfix, dovecot, and suirrelmail/rainloop. I have multiple domains on the server. The main server domain is set via example.com.vhost ...
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1answer
155 views

Postfix virtual aliases & domains?

(I am a Postfix newbie, was using Exim -which I don't master well- poorly till a recent system update on my VPS; but I am using Linux since 1995 and Debian since end of previous century on my home PCs,...
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111 views

Postfix rewriting subject for specific addresses

I would like to add a tag to all email messages sent to a particular address. I have tried to copy examples from the web, but can't seem to get it working. Here's what I've done so far: Add to /etc/...