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

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PHP mail() function not working in Mac OS X

I know this question has been asked many times and people use to give many solutions. I have followed almost all the possibilities which I come across after investigating on it. but nothing worked ...
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4 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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11 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 ...
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2answers
5k views

Monitor Postfix outgoing mail delivery

I'm using GNU Mailman with Postfix to run a mailing list, and would like to monitor the delivery of outgoing mail, that is: for each mail sent from the list, check whether a 250 (OK) message was ...
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1answer
20 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: ...
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1answer
36 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 ...
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1answer
28 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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2answers
29 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 ...
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0answers
14 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) ...
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2answers
3k views

CentOS 6 - Inodes full - can't delete folder containing files

I have a CentOS 6 server at rackspace with 40GB of space. My server kept crashing with 'no space left on device' errors but there is over 50% free. When I run df-i this is the output: /dev/xvda1 ...
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1answer
20 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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47 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. ...
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1answer
135 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]: ...
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0answers
39 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 ...
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3answers
1k views

Is it possible to queue a message by writing it to file?

I'm wondering if it's possible to create mail messages and put them into the postfix queue simply by writing files to the hard drive. Currently I have a script which uses a socket connection to dump ...
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1answer
22 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
17 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 ...
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0answers
21 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 ...
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0answers
59 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
26 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 ...
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0answers
18 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 ...
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2answers
92 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 ...
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38 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 ...
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2answers
28 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 ...
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0answers
272 views

Postfix - SMTP mail delivery failed with “Connection timed out” error

I have installed postfix mail server in ubuntu machine. I am facing some issues with the mail sending to other domain mail servers (Google, Yahoo, Outlook...). I am using virtual domain to send the ...
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0answers
26 views

Forwarding Postfix email to multiple users not working

My /etc/postfix/virtual currently contains (emails obscured for privacy) teals@example.com example+teals@gmail.com, other_example@gmail.com, third_example@gmail.com example@example.com ...
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2answers
107 views

Why my Email server Mark as Spam?

Hi I have installed emails sserver and I was configuration with SPF, DKIM not relay. but still mark as spam when sent into another mailserver. here my header when sent into gmail. Delivered-To: ...
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0answers
23 views

Outbound mail queue lifetime standards

Description: I am trying to setup an email server with qmail and postfix as a MTAs. I am using postfix to handle my outbound mail flow traffic. Problem: I have set postfix maximal_queue_lifetime to ...
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43 views

Softfail with properly configured SPF

I have just set up a mailserver with postfix+dovecot. Sometimes, when I send an email, I get an SPF softfail (the other times, the test passes). It seems postfix isn't communicating the IP address ...
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0answers
240 views

How to configure to send emails from localhost pc with postfix xampp and xubuntu configuration

I am building some website and for testing purposes i need to configure somehow to be able to send emails from my pc. I have xubuntu installed on my home pc and xampp for local development. I have ...
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1answer
25 views

Avoiding Mail Server Inconvenience

We run our own web server (Apache on Ubuntu) for a bunch of non-commercial websites, but there was no mail transfer agent installed on it, since they are complex to configure and maintain. You need to ...
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141 views

macosx: How to unblock SMTP port?

In /var/log/mail.log I see runs of time-out errors in quick succession, like this Dec 13 15:50:31 myserver postfix/smtp[2911]: connect to alt2.gmail-smtp-in.l.google.com[74.125.138.26]:25: Operation ...
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0answers
33 views

Postfix - relay issue on my end?

Maybe someone experienced more than me in Postfix can help me out a bit. mail.log:Dec 11 22:14:36 server596 postfix/smtp[31301]: 3A5BC17AC00D: to=<int@njsbw.com>, ...
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0answers
36 views

Postfix error: proxy-reject: END-OF-MESSAGE: 451

I installed mail server by using the fufix bash install script. I cannot send and receive messages. Keep getting this message in log: mail1 postfix/smtpd[25142]: proxy-reject: END-OF-MESSAGE: 451 ...
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1answer
36 views

postfix relayhost send as user@example.com

I have a working setup of a postfix installation, but because I have a dynamic IP, gmail refuses any messages I send from my server. I searched arround and found that with relayhost I can send ...
3
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1answer
2k views

Postfix: SMTP, use port 587 rather than 465

I have set up a mail server on AWS EC2 using the instructions from Flurdy: http://flurdy.com/docs/postfix/ it has mostly gone well. My issue is that I would prefer to use SMTP port 587 with TLS ...
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0answers
84 views

How can I have Postfix add a header to all outgoing mail based on command?

I would want to have postfix to run the command: /usr/bin/hashcash -mXb 26 <RECIPIENT1> <RECIPIENT2> ... <RECIPIENTn> and add the output of this command as a header. How can this be ...
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1answer
265 views

Can't receive mail, but can send mail? Centos 6 Postfix/Dovecot

I followed this tutorial to setup my webmail on centos 6: https://www.rosehosting.com/blog/mailserver-with-virtual-users-and-domains-using-postfix-and-dovecot-on-a-centos-6-vps/ Everything is setup ...
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vote
1answer
5k views

Email test deferred (mail transport unavailable) with ClamAV

I'm trying to set up a simple new mail server; when I send a test email to the server the email is getting hung up during delivery (user mapping is found) and the email is never found in ...
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33 views

msmtp complains no auth method found

msmtp output: <-- 220 example.com ESMTP Postfix (Ubuntu) --> EHLO example.com <-- 250-schemacs.com <-- 250-PIPELINING <-- 250-SIZE 10240000 <-- 250-VRFY <-- 250-ETRN <-- ...
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0answers
70 views

How can I set a conditional relay in Postfix?

We have Postfix setup to relay mail to our hosted Internet facing mail server. Is it possible to configure Postfix to relay mail differently based on the destination? We currently have it working so ...
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2answers
508 views

Using supervisord to control the postfix MTA

I am trying to use supervisord to control postfix. The usual method is to specify a command which starts the daemon, I use postfix -c /etc/postfix start. The postfix man page says that to stop you ...
0
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1answer
25 views

POSTFIX is possible to detect when mail was read

I have a problem that I need to check when in the morning the first mail of some account was read. We are using POSTFIX mail server and system is UBUNTU. is this possible?
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0answers
60 views

Multiple postfix instances one host

I have a server on which i need to add setup a second postfix configuration to send e-mail (doesn't have to receive) that's being sent in from a PHP web application that's hosted on the server aswell. ...
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0answers
44 views

How can I filter spam based on the return path in an email with clamav/amavis/spamassassin/postfix

I run an Ubuntu 12.04 server that hosts a few sites and has a handful of mail users. For email, I am using postfix/dovecot with clamav/amavis/spamassassin for anti-spam/virus. This works pretty well ...
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0answers
254 views

Postfix SMTP message being marked as SPAM by Gmail and Yahoo

I'm having a problem getting my low-volume of legitimate email messages through the SPAM filters of Gmail and Yahoo. I have followed Gmail's guide here: https://support.google.com/mail/answer/81126 ...
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1answer
27 views

postfix problems with pattern in virtual file

We are trying to forward all emails to a specific email address. I think everything is set up okay, such as 'main.cf' and 'virtual-regexp' files. If we put the following in the 'virtual' file, the ...
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0answers
89 views

Some mail from newly setup mailserver flagged spam by GMail

I have just setup a new mailserver using Postfix on CentOS 7, the machine serves as mx for two domains, domain1.com and domain2.com. The server's hostname is domain1.com and it has the correct PTR ...
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0answers
42 views

Limit postfix e-mail-address to only receive from one domain, discard everything else

we have a new copying machine in our office, and it is capable of fax per mail and print per mail. what i want to do is to configure postfix in a way that our copier is capable of sending anywhere (so ...
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2answers
1k views

Postfix SMTP SSL config: Can't send email but can receive it with SSL

I am trying to finish configuring my postfix/dovecot mail server that sits behind my home's router/firewall. I'm on Mint/Ubuntu 12.04. I'm close. I can connect/retrieve emails via SSL but can only ...