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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13 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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1answer
21 views

how to use procmail as a MDA for postfix? (mailbox_command)

I am trying to setup procmail as a mail delivery agent (MDA) for postfix. I understand that I should use the mailbox_command option in postfix for this, but an internet search revealed contradicting ...
2
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0answers
28 views

How to trap spam sent from certain top-level domains?

I'm getting a lot of spam from eu TLD Maybe I could have put a rule set giving a score of say 2.5 or 3 for any mail originating from the .eu TLD; then this score + other factors could have made it ...
2
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1answer
20 views

Postfix - external email notification when an internal email is received

describing my specific case; on our centOS 6.6 final servers , I've installed yum-cron, in order to schedule a check every night if there are updates from the active repositories. I preferred to ...
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35 views

My server email cant connect to outlook or thunderbird

I have postfix for smtp, and dovecot for imap/pop with FROXLOR. I have configured correctly, but i cant success in configure account in client mail programs. Outlook I recieve Log on to incoming mail ...
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13 views

Does postfix support MySQL connections over SSL

I have a postfix server and a MySQL database server. I setup MySQL SSL and have it working successfully. I can connect from postfix to mysql with the user requiring SSL. The problem I have is, when I ...
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0answers
17 views

Postfix - Extract Final-Recipient from a large queue of mail

I have a large queue of backed up messages. I've checked a few and the Final-Recipient domain seems to be the same. I'm spotting a trend but I want to make sure before I take further action. How can ...
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36 views

Postfix does not send mails until the service is restarted

When I restart my server, postfix starts up - I can verify this by doing postfix status. It says "the Postfix mail system is up and running." When I try to send an email from a PHP script after ...
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1answer
67 views

Grep /var/log/maillog for email to a certain user, based only on his linux username

Level 1, beginner here. Question about grep and maillog. I have a learning environment, based on Linux CentOS, with Postfix and SquirrelMail running, but my assignment is more in general. I need to ...
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19 views

Postfix - domainkeys=neutral (no sig)

I have everything else working fine (SPF and DKIM) but I can't get domainkeys=neutral (no sig) to pass! domainkeys=neutral (no sig); from=foo.com; dkim=pass (ok) I know what some people are already ...
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51 views

Error 550 No Such User Here when sending mail to postfix server from certain servers

So, I've been doing a lot of Googling and researching, and I can't wrap my head around this. I set up a mail server using iRedMail. I'm not an incompetent Linux user, but I'm not experienced in the ...
0
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1answer
21 views

Postfix - Force emails to stay in the queue for at least X seconds before sending

So I have been trying figure out how to modify Postfix email body messages without any real luck. I can figure out how to modify the first word but anything after that doesn't work. So my second ...
2
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1answer
83 views

Postfix virtual alias domain matching with regular expression virtual alias map

Using Postfix (2.11.3) I want to redirect all mail to an external address. /etc/postfix/main.cf: virtual_alias_maps = regexp:/etc/postfix/rewrite /etc/postfix/rewrite: /^.+$/ hijacked@example.com ...
0
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3answers
50 views

Send mail at startup

I want to send a mail to myself at the restart of a server. We use AWS, and a restart results in a changed internal 10.x.x.x address. This address has to be configured in Postgres and elsewhere, and ...
1
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1answer
66 views

Cent OS 6.6 enable Plaintext authentication on dovecot and postfix

A customer of mine wants to use gmail as their default mail client but I have rolled forward to a new CENTOS server version (6.6, ok it's not "new" new) and the dovecot and postfix settings are ...
0
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1answer
18 views

Postfix - Delete queue for secondary installation?

I have installed multiple Postfix on the same server. To delete the queue for the main I run the following command postsuper -d ALL How would I do the same but for the second installation?
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1answer
26 views

CentOS 6 Cron Logging Without Postfix

On a CentOS environment I am setting up, I have no need for email of any kind. I would like to simply disable postfix entirely, however this also disables logging from cron which I do need to have. ...
2
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3answers
77 views

Installing Postfix conflicts with MySQL-server package

I had to install MySQL Server community on our server (team lead did not want MariaDB due to support or something). Therefor I removed MariaDB which in turn also removed Postfix. Now I need to ...
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1answer
35 views

Postfix - Modify header “Message-Id” twice

So I am trying to do both of the following however Postfix only changes the first Message-Id. With the below example Precedence: bulk wont be added because it's at the bottom. ...
1
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1answer
138 views

PHP mail (using Postfix) send out to Gmail marked as SPAM

I'm totally new to "Email Systems" and it's concepts. I just use a simple email sending codes via PHP, like: mail("recipient@gmail.com","my header","my body"); I understand this is going through ...
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0answers
54 views

postfix sender mailaddress rewrite based on recipient mailaddress

I use postfix to send out mails to my contacts. Usually I use the info address for this and I've set a rule to rewrite my internal address into a valid mail address. So for example me@localhost gets ...
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44 views

Modify multiple headers before email gets sent out

I send emails through a PHP script and want to modify the headers of the following X-Mailer-LID: X-Mailer-RecptId: X-Mailer-SID: X-Mailer-Sent-By: I am not sure how or what to change them to ...
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0answers
28 views

Postfix relay - Remove all traces of main node domain

I am using mydomain.com as the central server and myrelay.com as one of my SMTP relays. I currently have the following set to convert the headers. /etc/postfix/header_checks /^Received:/ IGNORE ...
0
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1answer
67 views

How can I get dovecot to retrieve my email?

I am setting up an email server for my personal domain. There will only be one user (me). I am running a DigitalOcean VPS on Arch, everything is up to date as of yesterday. I have got postfix ...
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3answers
182 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 ...
0
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1answer
73 views

CentOS Postfix changing mail server

I've been using Postfix on my CentOS 6 Server on it's default install settings but I would like to configure it to use the mail server from my existing email. I altered the /etc/postfix/main.cf file ...
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1answer
39 views

How to install Splunk for postfix?

I'd like to have a dashboard accessible through my apache server which displays postfix logs. I found Splunk for postfix, but there is nowhere an Install instruction for it. Do I need a full ...
0
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1answer
35 views

postfix: what does /.+/ in pcre do?

I'm rewriting all sender addresses to one address in Ppostfix. main.cf includes this line: sender_canonical_maps = pcre:/etc/postfix/canonical_sender The file canonical_sender looks like this: ...
0
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1answer
68 views

Postfix virtual_transport vs mailbox_transport

Whats the difference between mailbox_transport key and virtual_transport key? In old examples I've seen virtual_transport used but it did not seem to work on my Ubuntu 14.04 system, whereas ...
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0answers
41 views

How to test spamming mail server

I've recently configured a mail server which sends emails with SASL authentication. Emails are sent primarily through php scripts using Pear. This is all working fine and dandy however I have seen ...
1
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1answer
159 views

Postfix with smtp authentication failing

I'm currently in the process of updating my new server to do the same tasks as my original older server (new server is running Debian wheezy, old server is running Debian squeeze). The issue I'm ...
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1answer
87 views

how to prevent cron job email splitting into multiple lines

CRON has emailed me the extract below : May 12 04:27:54 rpi postfix/smtpd[9343]: NOQUEUE: reject: RCPT from unknown[95.211.213.214]: 504 5.5.2 <WIN-HBAL58UG0JH>: Helo command rejected: need ...
1
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1answer
59 views

How to change the email address Postfix sends out as

I currently use Postfix on an Ubuntu machine that uses Nagios for monitoring. I'd like to change the email address that Postfix uses to send out. Postfix just relays all its email through our ...
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0answers
38 views

Postfix connecting to itself

I have a weird issue with my postfix installation, also I'm having troubles to debug it because I'm new to the topic. When I check my log lines: postfix/smtp[29663]: A929510E76D9: ...
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0answers
12 views

Trouble with postfix configuration to communicate with ruby application

This could be such a wide range of things but i hope posting here would narrow it down, i have this application installed and running in a web browser https://bitbucket.org/naushniki/qamail/src and ...
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67 views

Centos 6 and postfix: Internal emails deferred / telnet timed out from SSH

The problem is, that I have a VPS with centOS 6 installed, and I can send emails to anyone, but my own exchange server, Apr 29 11:50:30 amazonnet postfix/smtp[16535]: 2B6FF3CC49A: to=, ...
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92 views

Postfix/Dovecot import mail from Gmail

I setup an iRedMail server on Ubuntu 14.04. My company currently uses Gmail but wants to switch to a cheaper solution. I set up the server with an LDAP DB, and I'm using Postfix and Dovecot for the ...
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55 views

Postfix problem with sending and receiving emails

I have had problems for one week with the email server Postfix. This came after running the antivirus ClamAV with the remove option on. When reading the mail log I keep getting the error message ...
1
vote
1answer
165 views

Postfix Mail Relay Server with TLS

I currently have Postfix set up on a Centos 6 server, as a simple forwarding service. Currently in /etc/postfix/main.cf I have set the following: smtpd_client_restrictions = ...
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99 views

Fail2Ban: Sending Mails with CentOS 7 using postfix

I am seeking advise on how to get Fail2Ban installed and configured on CentOS7 using firewalld and postfix for sending reports. I am not in need and even don't want having a fully featured mail server ...
2
votes
1answer
73 views

Displaying emails with mutt

After being able to retrieve emails from an IMAP account on a remote mail server using fetchmail and POSTFIX as an MTA, I am able to see the emails in the spool folder /var/spool/mail/ghassan in a ...
-1
votes
1answer
294 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 ...
1
vote
1answer
44 views

Postfix rejecting everyhing

For some reason postfix is rejecting sending mails and I can't get why. Here are relevant lines of what I used at the beginning: smtpd_recipient_restrictions = check_policy_service ...
2
votes
1answer
257 views

How to prevent bounce of SMTPUTF8 emails

After updating postfix to 3.0, emails with UTF-8 chars in there subjects, are stuck in queue, with the following error: SMTPUTF8 is required, but was not offered by host mail.example.com ...
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44 views

how to use postfix alias for sending email

I am not this question has been asked or not, I have postfix running with MySQL and recently i have created "support@example.com" alias email to multiple folks get email, just like distribution list. ...
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0answers
40 views

How to configure dbox mail storage format for a single mail account?

I'm using ldap database at backend and I want to configure my mail server such a way that one mail id i.e. info@domain.au will be stored as dbox format while other mails will be stored in maildir ...
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0answers
32 views

IMAP login not recognizing SASL while simple postfix send is

I've got SASLAuthd working (via LDAP), and am also successfully able to telnet via port 25 with my LDAP credentials. Postfix is configured with Dovecot. All 3 services are running fine (Postfix, ...
0
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1answer
47 views

Looking for an email server that supports mysql ssl connection

I am trying to secure connections to my MySQL server. I have SSL set up but I am looking for programs that support a SSL connection to MySQL. Specifically I am currently looking for an email server ...
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0answers
36 views

Postfix: Send bounce message instead of NOQUEUE/error code

So I know this goes against default behavior and is technically backscatter, but this is what I need to do: Instead of an invalid user being rejected early in the SMTP chat with an error like this ...
0
votes
1answer
188 views

Find all the PHP scripts with email in my postfix mail queue

How do I find all the scripts that have mail sitting in my postfix mail queue? This server is sending out spam and I've spot checked it, but I want to make sure I haven't missed any scripts that may ...