Postfix is a free and open-source mail transfer agent (also "MTA"), written in 1997 and still actively developed.

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9 views

Email transmission delays between Gmail and our server [migrated]

A few days ago I started setting up a mail server for our company: OS: Debian MTA: Postfix DNS: bind9 Firewall: pfSense Port forwarding for ports 25 and 53 through pfSense for passing on DNS and ...
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5 views

Postfix + Dovecot prevent vUsers to override previous Replies on the eMails

After I installed the iRedMail (Postfix, Dovecot, ....), the Business Request is to prevent the Users edit the Previous eMails Bodies during their Reply, Reply all, or Forward. I searched for ...
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1answer
14 views

I need to block the POP3 DELE Message by IPtables - Linux

I installed the iRedMail (Postfix, Dovecot, ....) and create Mailboxes for Users. But I hanged in the Deletion Request. I want to prevent vUsers (that have MAilboxes) from deleting the eMails ...
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39 views

How to bounce an email

I'm getting spam (thanks to NameCheap not properly cloaking my email address), and I'd like to bounce the emails back to the spammers so they think my account doesn't exist. They're not forged From ...
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2answers
21 views

Make postfix reject incoming email spoofed as from my own domain

I have a postfix server correctly configured to allow incoming mail to my domain, and to require authentication in order to send mail to any other network. A lot of spam that I get has a forged ...
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24 views

Mail classified as spam due to incorrect timezone in Date: header

I'm running a mail server using Postfix and Dovecot. My problem is that my emails are getting classified as spam, even though I have PTR, DKIM, DMARC and SPF set up correctly. The test on ...
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36 views

Receiving email on linux

I have a CentOS box with a basic postfix instance installed that has a relay configured. The box can send emails to the outside world (ie Gmail, Yahoo). The question is how can I get this box to ...
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24 views

Problems with postfix and sending mails

I have ran into problems while configuring my postfix for my CENTOS machine. Note:The mailserver itself should be localhost only and only be able to send mail internally. the following shows up when ...
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18 views

Why use both Dovecot and Postfix?

Just out of curiosity, there are dozens / hundreds of tutorials helping you setup a dovecot - postfix mail server. On the surface, both of them are email servers, why use both? Mail servers are ...
0
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1answer
15 views

Match .file with POSIX extended regular expression

I am trying to match any file with a dot in the front using POSIX extended regular expression. I know in regex this is ^\..*. This is what I'm using it in: #!/bin/sh MONITORDIR1="/hdd_1/path/to/dir" ...
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7 views

Postfix - How to send local mail with attachment?

I followed a guide on how to set up Postfix for local mail delivery. Guide: http://cafim.sssup.it/~giulio/other/Postfix_Setup_for_Local_Mail_Only.html I would like to send mail containing a single ...
0
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1answer
22 views

Postfix issue on Ubuntu

I have a little issue with my Postfix, I can't receive any email... Every time I try to send an email from an external source, I receive : Jul 28 11:05:38 DESTHOSTNAME postfix/smtpd[24871]: NOQUEUE: ...
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20 views

Postfix virtual map to username at domain

I'm trying to have postfix forward emails sent to a few different emails at a domain to the same Gmail address. I have gotten it to forward 2 of the 3 emails addresses I'm trying to forward but the ...
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0answers
15 views

Unable to send email using PHP

I have postfix installed, but can't get it to send any email. I'm not sure what the problem is, it could be postfix it could be something else. I just can't get php to send mail Here is my setting's ...
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28 views

Postfix install fails. MySQL conflict

I'm using CentOS 6, and trying to create a virtual mirror on a new server of an old one (which someone else setup). As much as possible, I want keep everything with the same version, but I've started ...
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0answers
38 views

Postfix - Alias users SMTP login

I have a postfix mail server, and am looking for a way for aliases to send mail. For example, I have the user alias@example.com which redirects to myemail@gmail.com defined in my mysql mail_aliases ...
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0answers
35 views

is there easy auto config software for setting up postfix/dovecot/mysql? [closed]

I'm really pulling my hair out on this one. I have installed all of the apps mentioned above, along with webmin and postfixadmin. Webmin gives me settings for dovecot but asks for a sql configuration ...
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0answers
68 views

Postfix Outgoing mail not working from external locations

I'm currently trying to get Postfix and Dovecot to work on my Ubuntu server, and it partly works. I got it working on Roundcube. I was able to send mails to and receive from external servers like ...
0
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1answer
37 views

How to add regex aliases in Postfix when using MySQL

I need to create regex based catchall aliases in Postfix setup with MySQL. I have found examples of a mysql_virtual_alias_maps_regexp.cf with this query: query = SELECT goto FROM alias WHERE '%s' ...
0
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1answer
93 views

Samba4 group email address lookup postfix/dovecot

I have samba4 ad dc setup with my users and groups working fine loginwise. I have installed a postfix/dovecot mailserver on my dc, which is working fine with single user mail addresses, sending and ...
0
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1answer
47 views

Roundcube can send email, but not displaying received messages

I recently installed Roundcube on Debian Linux. I am using Postfix and Courier IMAP as well. Installation was a breeze and I was quickly able to send an email from me@myserver.com to me@gmail.com. ...
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1answer
94 views

does postfix 2.11 needs to be patched with VDA patch for per user or domain Quota support, when dovecot 2.2.x is used as imap server?

does postfix 2.11 needs to be patched with VDA patch for per user or domain Quota support, when dovecot 2.2.x is used as imap server ? Im using ubuntu 14.04 LTS with postfixadmin 2.3. i appreciate ...
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1answer
67 views

Cant receive mail from gmail (2)

I've noticed mails being sent from my gmail account to a mailbox on a centos 7 server are not arriving their destination, but no bounce message returned as well. This is what I've found in maillog: ...
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31 views

I don't recieve virtual alias email from my postfix/dovecot server in Gmail

For some reason the regular virtual user email accounts like admin@example.com comes into Gmail via POP3/IMAP just fine - but none of the virtual alias email comes into GMail! Gmail says it retrieved ...
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1answer
86 views

Postfix with SASL and Dovecot 2 configuration

I'm trying to configure my server to receive and send mails. Sending mails is no problem, but there seems to be an issue receiving mails. I have this configuration working on my old server, but now ...
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14 views

DoveCot users + multiple domains

Hi I am trying to get dovecot to work with multiple domains My /etc/aliases looks like this # See man 5 aliases for format postmaster: root shop: shop ben: ben When I try changing it to ...
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30 views

Prevent Fake E-Mails with Postfix

I have a secure and almost-properly-configured SMTP/Dovecot server running, but I do have a problem. As it's currently set up, anyone (who has valid credentials) can send e-mail from any address in ...
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223 views

Relay access denied (in reply to RCPT TO command) Postfix Issue

I am trying to configure my server for email taking reference form this link: koray.me/smtp-relaying-outgoing-mail-in-postfix-using-webmin. I used Mandrill smtp server in my case. I have also ...
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64 views

The emails sent by mandrill are soft-bounced by the postfix server

We have a app written under php (symfony2) and we are sending a certain type of email via mandrill. It works the past months but now all the emails sent to info@domain.com are being soft-bounced and ...
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0answers
29 views

make postfix bypass amavis completely for specific domains

I want the postfix agent to bybass the amavis scanner for all mails from and to a specific domain. So, i added the following line to /etc/postfix/main.cf header_checks = ...
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14 views

Postfix errors when triggering mails from a server different than the mailserver

We used to have a server for everything, where our PHP scripts and the mail server would run on the same server. Now we moved our php scripts to a different server and we seem not to be able to send ...
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334 views

smtps service not found/“warning: connect to transport private/smtps: No such file or directory”

I'm trying to access an SMTP smarthost example.com using TLS via port 465 by adding smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes -o ...
0
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1answer
436 views

Postfix not delivering messages (554 Client host rejected: Access denied)

Messages from localhost is working normally, but when I try to send mail from i.e. gmail to my domain (as in virtual domain mapping) postfix is denying it with error (554 5.7.1 : Client host rejected: ...
0
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1answer
317 views

How do I block Postfix from sending spam?

My postfix is sending spam from a random-name@mydomain.com address. How is this possible and how do I allow only www-data@localhost to send and postfix to only deliver from myname@mydomain.com to ...
0
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2answers
110 views

Postfix not connecting to postgres pool with local ip address

I have a postfix e-mail server that is contacting a database to query and verify e-mail addresses etc. It connects using pgbouncer to cycle through connections, however my problem was that the ...
0
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1answer
56 views

Posftix 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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0answers
23 views

postfix multi bcc_sender_maps

I am trying to configure postfix to send mails to multiple e-mail address using sender_bcc_maps user1@domain.com -> bcc1@domain1.com bcc2@domain2.com my configigurations is postfix + vusers (sql) ...
0
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1answer
33 views

Postfix / Dovecot Mail appears in logs, but not in its respective folder

I'm currently trying to set up Postfix with Dovecot, but something does not seem to work the way it should be. For some reason, mails I sent to my mail account appear in the logs, but do not become ...
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0answers
121 views

Signing-milter / SMIME - how are this email signed incorrectly?

I have a problem with signing-milter (http://www.signing-milter.org). The problem is that the -b flag is required, and the -b flag is not recommended because it outputs non-RFC compliant email. ...
2
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1answer
761 views

postfix - warning: connect to transport private/smtp: Connection refused

I have been having trouble with my postfix+dovecot mailserver. Every time I try to send an email to a different server (gmail etc.) I get the following messages in the log: postfix/qmgr[28918]: ...
0
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0answers
88 views

Outlook 2013 connects to Postfix/Courier server and can send emails, but doesn't open Inbox

I've configured a Debian server with Postfix and Courier along with SquirrelMail for a client. I've configured the server with his email accounts, and these are accepting emails without issue. I've ...
0
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1answer
88 views

postfix how to allow domain but block subdomains

I have a postfix mail gateway that passes mail to and from a domain. I want it to reject mail to or from subdomains of that domain. Is there a simple way to do that?
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0answers
23 views

How configure spamassassin to deliver spam to a spam folder [duplicate]

I created a small mail server following these instructions: https://www.linode.com/docs/email/postfix/email-with-postfix-dovecot-and-mysql for mail server and ...
1
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0answers
48 views

Conditional relay with credential based on domain recipient?

I use postfix to send email directly, but sometimes outlook.com won't deliver my business email messages. After changing the SPF record, the delivery succeeded, but goes to the recipient's Spam ...
0
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0answers
137 views

Dovecot imap connection closed by remote host

I have setup postfix and dovecot on my ubuntu 14.04 on a digitalocean droplet. When I telnet to my localhost on imap, I get the output below, can anyone help me.. telnet 127.0.0.1 143 Trying ...
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0answers
39 views

Postfix private relay

I've setup my postfix + dovecot server successfully and can send/receive mail however I would like to setup a cluster of 2-3 extra servers which are used for outgoing mail. I have looked into options ...
0
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0answers
30 views

Masquerade address based on destination with Postfix

How do I set postfix to replace the "From" header based on the destination domain? For example: Sending email from me@domainA.com to you@domainB.com should be changed, so as to appear as if the email ...
0
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2answers
166 views

Can't connect to my email server

Recently I transferred my domain to NoIP, and I had to create a mail server. (I had to transfer to noip because I can't setup a static/fixed ip as I am particular not a business, and I don't have a ...
0
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0answers
58 views

How to configure postfix Ubuntu with a tk domain

I have a free my.tk domain and I want to send emails with it using postfix running on my Ubuntu server. Please look at the my.dot.tk website and post a step by step tutorial on how to configure ...
0
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2answers
52 views

What have I done wrong with my Postfix config?

My mailserver has been sending emails fine and dandily to newsletter subscribers via the Mandrill app, but I have not been receiving emails on the domains I want, I only want mails to go to the user ...