Free and open source mail transfer agent (MTA) that routes and delivers email. When asking about postfix problem, please include the relevant maillog lines and output of the following command: "postconf -n" (content of main.cf) and/or "postconf -M" (content of master.cf)

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1
vote
1answer
18 views

Postfix not accepting external connections

I have set up a postfix server that works just fine when accessed as localhost. However I cannot make it available from the outside. The relevant configs are as follows: /etc/postfix/main.cf ...
0
votes
2answers
23 views

linux: forward mail in mailbox

Is it possible to forward mail out of a mailbox to another mailbox? I know about .forward, that's not what I want to do(seems like that's 100% of the answers out there). I already have mail in a ...
0
votes
2answers
2k views

Automate Postfix instalaltion with debconf-set-selections?

I'm currently trying to automate my Postfix installation and most things work really... but I can't seem to stop postfix-policyd asking for the MySQL root password. Here is what I got so far: ...
0
votes
0answers
83 views

SMTP: Received from unknown [xxx.xxx.xxx.xxx] -> but IP does have a valid PTR/RDNS

I got the following problem. I got an smtp-relayserver that collects outgoing mails from other servers and checks them (spam assassin). Now the headers are showing this: Received: from ...
2
votes
1answer
29 views

550 Verification failed Sender verify failed (in reply to RCPT TO command)

Note: email addresses changed Current Error: Apr 28 23:47:32 vps01 postfix/smtp[8012]: 2A03D6285EF9: to=<brian@somedomain.com>, relay=mail.somedomain.com[162.144.93.233]:25, delay=42, ...
1
vote
1answer
42 views

Number of issues with postfix, DKIM, and mail getting rejected or bulked

I'm having a number of issues with Postfix and mail sent being rejected or put in the spam/junk folder. I am trying to send emails on behalf of a number of my customers. I've got a postfix server set ...
0
votes
0answers
6 views

Postfix configure <the database with non-UNIX accounts> in local_recipient_maps

What form would the configuration of <the database with non-UNIX accounts> take? # in /etc/postfix/main.cf local_recipient_maps = proxy:unix:passwd.byname, $alias_maps, <the database ...
2
votes
1answer
44 views

Sending mails from Gmail through my VPS (postfix, dovecot, postfixadmin)

This problem has been bugging me for a long time now and i want it to be fixed. On my VPS I have set up Postfix working correctly with postfixadmin and dovecot. (I can send (by terminal) and receive ...
2
votes
0answers
17 views

POSTFIX:Must issue a STARTTLS command first. Email not being send from commandline ubuntu

I am trying to send email from the command line from my ubuntu server. So I started configuring the postfix onto my local machine rather than on server. So basically these are steps which I followed: ...
0
votes
0answers
4 views

Gmail relay server not working from one sender 550-5.7.1 [duplicate]

I've got a postfix server set up to relay emails sent to my personal domain to a gmail account. It's been working fine for everything until today when a sender reported that all their emails are being ...
1
vote
1answer
16 views

Minimum postfix config to send mails to a smtps server

I'm trying to send mails with python so I configured a postfix server locally. The python part seems to work as my mails reach the smtpd server. After that, postfix seems to correctly query the MX ...
-1
votes
1answer
30 views

Can't receive mail from outside

I have two domains hosted on my server and now I want to setup both domains for my mail server, but I'm stuck. Localy it works fine, but when it comes from outside (hotmail, gmail...) it doesn't work. ...
0
votes
0answers
12 views

Cannot connect to postfix from Thunderbird

I have Thunderbird set up with IMAP and SMTP. IMAP (dovecot) works fine but SMTP (postfix) does not work. When I try and send an email via the postfix server I get the following in /var/log/mail.log: ...
0
votes
0answers
10 views

convert plain text passwords to sha512-crypt in dovecot + postfix's mysql mailbox table

I have an old postfix + dovecot + Roundcube mailserver (mail.domain.Tld). Server clock is loosing time and adjusting it causes dovecot to kill itself, we cannot install more memory, bigger ...
2
votes
0answers
14 views

Postfix filter incoming mail

Currently I have a Postfix setup on a CentOS machine. It has multiple virtual_alias_domains and virtual_alias_maps = hash:/etc/postfix/virtual. There are multiple entries in /etc/postfix/virtual ...
-3
votes
2answers
27 views

How can I check how many emails were sent by Postfix?

I have access to Postfix's mail.log file. In order to tell how many messages were actually sent, how can I check this log file? Is there a specific string that I can grep for.
0
votes
0answers
13 views

Installing mailutils - Where is the configuration?

So I installed mailutils on Ubuntu 14.04 and was prompted to choose a configuration: https://assets.digitalocean.com/articles/postfix_sendonly/1.png I choice "Internet Site", and updated php.ini ...
1
vote
1answer
81 views

Postfix/Dovecot with MySQL on CentOS 7 not creating the proper directory structure

I have set up a mail server using Postfix, Dovecot and MySQL on a CentOS machine to serve some virtual users but for some reason it doesn't store emails in their proper folders. Postfix and Dovecot ...
1
vote
0answers
15 views

Postfix relayhost not working

I have a simple goal: I am setting up a monitoring system and I want this monitoring system to send me emails when a problem with my servers occurs. I have Postfix installed. And I want to use mail, ...
1
vote
2answers
61 views

Zimbra (postfix) receives email from “my domain” but from external unknown server

I've installed a Zimbra 8.0.7, recently the server have become to deliver emails from accounts that belong to my domain ("example.com") but this mails come from external smtps, for example: 1. the ...
0
votes
2answers
45 views

postfix allow localhost only local users

I have a little problem. I am offering some clients access to my server in order to execute own scripts (of course in their own chroot environment, etc...). The problem which occured today: Some ...
0
votes
1answer
57 views

Ubuntu/Postfix not receiving emails from outside

I am trying to configure my Amazon EC2 instance to receive emails with postfix. I tried for hours but I never received an email. If I send email from same server terminal it works. This is working ...
3
votes
3answers
1k views

What is telling me postfix with this error: warning: connect #n to subsystem private/proxymap: Connection refused

Can anyone tell me what's postfix telling me with this error? Feb 9 13:08:59 hostname postfix/postfix-script[23077]: starting the Postfix mail system Feb 9 13:08:59 hostname postfix/master[23079]: ...
0
votes
2answers
15 views

In CentOS, unexpected e-mail activity logged in my maillog file

I have CentOS 6.7 with Apache, PHP and CakePHP 3.0 installed. I just checked up on my /var/log/maillog. I have this logged every 5min without fail. Does anyone know who's doing this and why? Or how I ...
12
votes
5answers
13k views

Postfix aliases and duplicate e-mails, how to fix?

I have aliases set up in postfix, such as the following: all@mydomain.com: foo@mydomain.com, bar@mydomain.com ... When an email is sent to all@mydomain.com, and any of the recipients in that ...
0
votes
0answers
19 views

Postfwd not working in ubuntu

I'm trying to configure postfwd with postfix, but not getting any success. Bellow is the list of codes that i performed, not sure if there is anything wrong. Could anyone help me solve this problem? ...
-1
votes
0answers
41 views

Postfix outgoing mail through specific port [closed]

I am trying to setup postfix so that it sends out mails from localhost to external recipients using a single port. Currently postfix is trying to send out mails through a random port within the ...
16
votes
2answers
1k views

Is an IPv6-only MTA possible yet?

Has anyone had tried to run an IPv6-only SMTP engine? Pretty much everybody with any sense has IPv6 configured for major front-end servers. I was curious if anyone had tried to run an IPv6-only MTA ...
1
vote
2answers
207 views

Making sure Postfix MDA and Dovecot IMAP understand mailbox location?

I want to setup Postfix and Dovecot with Postfix as the SMTP MTA (mail transfer agent) and the MDA (mail delivery agent) and Dovecot just as the IMAP server, but I want to make sure that they each ...
2
votes
0answers
29 views

Extend Dovecot/Postfix setup with Calendar/Contact Sync

I am currently running a mailserver with dovecot (maildir) and postfix. Now one user has to sync his contacts and calendar with outlook and iOS using our service. The only way to do this seems to be ...
-2
votes
2answers
28 views

use postfix two mail server with two MX records

Our current setup is a webserver at www.domain.tld (DNS A record) and a mail server (postfix) at mail.domain.tld (DNS MX record) on one dedicated server (IP address 1.2.3.4). Our website sends out ...
-1
votes
1answer
22 views

Is this considered as spam email generated by postfix?

I have just checked my email log at /var/log/mail.log Apr 22 22:09:02 server2 postfix/pickup[14310]: D1FCF737C5B0B: uid=0 from=<root> Apr 22 22:09:02 server2 postfix/cleanup[17071]: ...
0
votes
1answer
60 views

Using DKIM in my server for multiple domains (websites)

As I couldn't find this exact tutorial in Stack, I share my findings with al of you. I always get things solved thanks to this comunity. Thanks! Original question: I've read the tutorial posted by ...
6
votes
3answers
5k views

How to enforce sender address to be “logged-in-user@example.org” in Postfix?

I have set up a Postfix server with SMTP AUTH (STARTTLS on port 587). All my users are in the domain "example.org". I want to enforce the sender address to be "logged-in-user@example.org". I learned ...
0
votes
2answers
18 views

Postfix - How to route outbound mail from multiple local Postfix servers

There are plenty of articles concerning postfix servers and multiple domains, relays and smarthost however they don't seem to address the architecture I have. I have built a small network consisting ...
0
votes
0answers
11 views

No folders on E-Mail using Postfix, Dovecot, RoundCube, all in MySQL

I don't have any folders on RoundCube for users. I have set up RC configs to auto add them and Dovecot should do it too, don't know what I did wrong. I use MySql (MariaDB) on RoundCube and Postfix. ...
0
votes
0answers
7 views

postfix sender_bcc_maps to local mailbox

I have an email relay set up using postfix. I would like to archive emails from a specific sender to a local unix mailbox on the same machine. I have postfix configured using sender_bcc_maps, and it ...
0
votes
0answers
13 views

dovecot does not deliver all messages — why?

I have a postfix/dovecot/sieve/thunderbird configuration. Recently I got a message that my IP would be blacklisted somewhere. I went through the process of recovery (https://sender.office.com/) and ...
0
votes
0answers
26 views

How change “from” of outgoing mail in postfix or dovecot without touching DB or app code?

I have test machine (test.domain.com) with dovecot+postfix both configured to work with database users. I can send and recieve mail (smtp) and check all my folders in UI(imap) with addresses like ...
0
votes
0answers
11 views

ISPConfig with DKIM for remote MX [closed]

I have an ISPConfig server configured with DKIM. For domain example.com I use a different mail server, biz.mail.ru, something like Google Apps. The problem is that emails sent from my server do not ...
2
votes
2answers
58 views

Postfix: SSL_accept:error in SSLv2/v3 read client hello A

A couple weeks ago, I noticed the following lines in my logs after moving to a new server with up-to-date software (which, among others, allowed me to finally disable deprecated SSL/TLS versions): ...
0
votes
0answers
5 views

postfix add header based on real recipient

Using postfix, I want to add (or replace) a Reply-To header based upon the recipient. header_checks seemed the answer until I realized the headers being inspected are RFC2822 and don't necessarily ...
0
votes
0answers
19 views

Postfix error Recipient address rejected: User unknown in virtual alias table

I have set up a Postfix email server with Dovecot for IMAP running on FreeBBSD 9.3. I am having an issue where I am unable to send an email to any users on the server from an external domain name. I ...
1
vote
1answer
28 views

Where can I get postfix log example?

I have to write parser for postfix log on ruby. It should find bounce, format it to JSON and send somewhere. I'm not system administrator and don't want to install postfix server on my laptop. Where ...
-1
votes
0answers
19 views

I have PhpMailer spamer on my server [duplicate]

I have a phpmailer who spam with my server, i dont find the breach, please help. Block port 25 with iptables ( INPUT, OUTPUT ) With postfix stoped i got > 19:09:48.172091 IP6 (hlim 64, ...
0
votes
0answers
7 views

Postfix: Sender Credentials Password Storage

A few weeks ago I was trying to implement a gmail-like SMTP relay / aliases system on Postfix here: Postfix: SMTP Relay based on alias (from address) After posting a solution for the question one ...
0
votes
1answer
24 views

Postfix/LMTP rewriting username to number 1

I have a frustrating issue with my mail server and i am confused as which part of the configuration is concerned, please note that both postfix and dovecot are configured to fetch configuration from ...
10
votes
2answers
12k views

Can postfix be set up to forward mail to multiple recipients

I have the following postfix virtual file: test@domain.com bob@me.com This correctly forwards all emails to test@domain.com to bob@me.com However I would like to forward these emails to ...
0
votes
1answer
11 views

Automatically create virtual email for user using postfix

On our website, we have some special users that can be contacted by email. It means that for now, they have a public profile page where after a mouse click their email is visible. Moreover, to log on ...
0
votes
2answers
46 views

Mail Server Can't Receive Email But Can Send Email - Postfix, Dovecot, Postgresql

I have server where I want to set up a mail server to let me receive and send email from my domain. I'm currently having a problem where while I am can not receive mails. Sending emails works perfect. ...