Questions tagged [postfix]

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` (non-default content of main.cf) and `postconf -M` (content of master.cf)

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2 answers
1k views

Current Load is WARNING - why?

On a VPS with 1 CPU core and 2GB RAM, I run a mysql+apache2 for a low traffic website. Sometimes the machine slows down or stops delivering through apache or mysql. That's why I set up nagios which ...
0 votes
3 answers
205 views

Server setup for SSL for sending and receiving emails?

I managed to setup one physical server using postfix, dovecot with mysql server. I do plan to use virtual domains and users. Current setup to send and receive emails. SENDING smtp.example.com ...
9 votes
3 answers
20k views

Postfix not delivering mails

I have problems with a recently configured postfix MTA. When postfix starts the following warning appears: postfix/qmgr[5078]: warning: connect to transport private/filter: No such file or directory ...
0 votes
2 answers
1k views

Why does my server (postfix) "relay" mails / Have my server been hacked? [duplicate]

Something weird is going on on my mail server. I was mailing a friend and my mail bounced because the ip of my server had been blacklisted. It appears like my server is being used for relaying spam ...
-2 votes
1 answer
44 views

Keep receiving abuse messages from my service provider, but cannot find anything in maillog

I keep receiving from my provider abuse messages, that spam is being sent out from my server, but I cannot find anything in the /var/log/maillog files. No information is being logged there about ...
1 vote
1 answer
307 views

Sympa suddenly changed the domain of all lists

we have on our server sympa with postfix installed. Everything was working fine for about 6 months. On our server were about 100 lists with the format [email protected] Since yesterday the format of ...
-1 votes
2 answers
616 views

Hostname appearing in email header

I use Postfix as SMTP Server and I don't want my server hostname to appear in the email header, what changes should I do? As you can see in the code bellow, here is the hostname: server1.example.com ...
0 votes
1 answer
5k views

Why am I getting a 'fatal: SASL library initialization'

If I turn on smtp_sasl_auth_enable=yes <- yes I get this set of warnings and a fatal for SASL. I can not see why it's also looking for cyrus - which is not compiled in. postfix/smtp[87056]: ...
2 votes
1 answer
2k views

Alias to external address in compound with catchall in mydestinations

I have a mail server that accept emails from any domain. This is accomplished by using the following line in Postfix's main.cf: mydestination = regexp:/etc/postfix/mydestinations.reg and ...
-2 votes
1 answer
78 views

Postfix Email Server Manipulation

I have one postfix mail server (postfix-2.10.1-6.el7.x86_64) under CentOS7. Now, our App Department is using it to send sms'es via email. To: [email protected] To: [email protected] To: ...
1 vote
2 answers
5k views

Postfix log showing same error every 5 minutes

I have an error in my mail.log (/var/log). I'm using postfix. I am only using it to send email from my web app (Python/Django) for registration (I haven't configured for inbound, the MX isn't pointing ...
-1 votes
2 answers
7k views

Dovecot/Postfix can't receive emails

All configurations suggest that everything works ok but i can't receive emails... no errors just status=sent (delivered to mailbox) My main.cf is # See /usr/share/postfix/main.cf.dist for a ...
1 vote
1 answer
2k views

Configuration of ClamAV on Fedora Core 21 with Postfix

I was unable to find any help anywhere on installing Clamav on a modern Fedora system. All the advice out there is old and doesn't apply - so far as I found anyway. And, it's not enough straight-...
-1 votes
1 answer
154 views

Configure postfix to run filter only with selected mail else all other mail pass without being filtered

I am running postfix and I'm using ubuntu 14.04. I created php script and i injected it into postfix to filter incoming mail. All run as I wish. But Now I want my postfix to run filter only with ...
4 votes
1 answer
13k views

Spamassassin RDNS_NONE matches, but there is a RDNS

I got a a little problem - spam assassin's RDNS_NONE-rule matches on my outgoing mails but there is a RDNS set for all hosts, that are in the delivery-chain. If I send an Email to "receipient-...
5 votes
1 answer
2k views

postfix dovecot disable lmtp

I have 3 servers. 1 MX server with postfix and 2 dovecot servers. MX server receive emails and then serve them through LMTP to specific dovecot server. All mailboxes from same domain are on same ...
3 votes
2 answers
2k views

Fail to trigger my php script when mail received by my Postfix

I am running Postfix mail on ubuntu 14.04.1. I want to "trigger a PHP script when Postfix server receives a mail" After investigation and the help of many tuto, . I have configured "postfix" & "...
-1 votes
2 answers
866 views

Source of syslog bind query denied message [closed]

What is the cause, and how can I stop this request on example.com from my ip (xxx.xxx.xxx.xxx) being continually repeated in /var/log/syslog? Apr 14 20:37:10 example.com named[1663]: client xxx.xxx....
1 vote
0 answers
181 views

Postfix relay smtp to 2 relayhosts for same domain [duplicate]

have a setup in which Postfix relays mail for a specific domain to another mail server (Exchange) via the usual transport file: # /etc/postfix/main.cf transport_maps = hash:/etc/postfix/transport # ...
1 vote
1 answer
9k views

opendkim public key not available [closed]

I'm having problems with my mail server sending or reciving mails from/to hotmail can anyone explain for newbies what all this errors on postfix log/gmail header/website dkim validator are telling me ...
1 vote
1 answer
774 views

Postfix - relay locally generated mail but accept mail incoming from GApps for the same domain

I know the way to disable all local delivery is to remove the domain from "mydestination", which will cause all mail to be relayed through whatever relay I setup. But I want postfix to accept all mail ...
8 votes
4 answers
6k views

SMTP message rate control on Ubuntu 8.04, preferably with postfix

Maybe I am chasing a bug but I am trying to set up a smtp proxy of sorts. I have a postfix server which receives all the email for a collection of servers/clients. It them uses a smarthost (relayhost=....
2 votes
2 answers
3k views

Postfix how to triggering my script when outgoing email status is sent?

I want to run a program when postfix has successfully sent out a mail (local or remote). I would like to pass the headers to program and if possible also the destination ip or address (exclude spam ...
1 vote
1 answer
744 views

postgrey configuration on Fedora Core 21 is very different, and not documented

In upgrading from Fedora Core 16 to Fedora Core 21, one of the challenges has been getting postfix working with postgrey. I still don't have it working after many long hours focused on it. In the old ...
4 votes
1 answer
1k views

Restrict postqueue access to admin user

I'm running postfix on Gentoo as mailer daemon. During investigation of some queue pileup I found that /usr/sbin/postqueue is executable by all users on the system, it happily outputs the current mail ...
-3 votes
1 answer
285 views

How to enable `dbox` for a particual mail account?

I need to enable http://wiki2.dovecot.org/MailboxFormat/dbox/ formailarchive account. I want to enable dbox only for the mailarchive account & the other accounts continue to use the Maildir ...
2 votes
1 answer
637 views

Authentication error connecting to a mail server via openssl in the terminal

I've set up an email server using Postfix and Dovecot and I'm able to send and receive mail using various mail clients but for some reason I get an authentication error when I try to connect via ...
2 votes
1 answer
2k views

Postfix won't forward email using virtual_alias_domains and virtual_alias_maps

Here is what i did: apt-get install postfix picked "internet mail" added a file "virtual" and appended a list with emails and emails (see below for sample) when changing postfix, i always updated the ...
2 votes
1 answer
3k views

Configure postfix to send email only from authenticated and receive from anywhere

I`m having problem configuring postfix to receive emails from any domain but block senders for only authenticated users in localhost My main.cf is like : mydomain = domainname myhostname = mail.$...
4 votes
1 answer
180 views

Maildir on Debian Squeeze - Finding email boxes on /lost+found

A server that I'm helping to administrate had a severe file system problem and now there's a lot of files inside the /lost+found directory. I'd like to find the [email protected]'s received and sent ...
0 votes
1 answer
4k views

should I use noanonymous?

I have postfix and dovecot on a machine and I don't want anonymous sasl. This is my main.cf smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes ...
1 vote
1 answer
890 views

iptables KVM prerouting SMTP

I have a host machine that has to manage traffic on port 25 and route to port 25 on the KVM machine for postfix deamon like this scheme: WAN --> (25) HOST_MACHINE --> (25) ...
1 vote
1 answer
5k views

Postfix restrict all incoming mail to certain domains, then allow all for specific user addresses

We use Postfix for company email address's given to employees... all are of the format [email protected]. Basically I want to restrict all incoming mail to these addresses to only allow emails ...
7 votes
2 answers
1k views

Postfix deny relay for some virtual users

I'm using Postfix as MTA and relay. Users that wish to send e-mail from a remote system authenticates and Postfix hands that to Dovecot, and this works well. But how can I limit which users can use ...
1 vote
1 answer
605 views

Failed to save mailbox : Failed to open PID file [closed]

I am using Virtualmin, My email are not working fine server not receive any emails and all bounced email trap in email queue. When I Try to "Login to Usermin" it show following error. Failed to save ...
-3 votes
1 answer
416 views

Postfix and multidomain

I'm trying to setup postfix to use multi-domains mail. Right now, I can send mails to [email protected], but sending mails to [email protected] isn't working: I receive the following ...
0 votes
1 answer
224 views

Postfix with no more space

My mails do not arrives anymore, my logs are full of warning: 545DDC0ECA: write queue file: No space left on device But it is a new server (several days), and disks are not full: rootfs ...
1 vote
2 answers
1k views

postfix smtp relay script

I have a Postfix server and using it with Outlook (POP/SMTP). I have different sender addresses for an account. Now I want to configure a relay for a specific sender address. For example I have ...
0 votes
2 answers
830 views

Postfix mysteriously stops running

My server has been experiencing this problem once every couple months: Application becomes unavailable to users Application log filled 100% disk space with an error message that it cannot connect to ...
12 votes
1 answer
1k views

Configure roundcube login by hostname

I recently installed Roundcube on my Centos6/postfix/dovecot server. Default install works great but I am trying to configure some options that I cannot seem to figure out. My end result would be a ...
3 votes
1 answer
4k views

Postfix: How to configure Postfix with virtual Dovecot mailboxes?

I have configured a Postfix mail server for two domains: domain1.com and domain2.com. In my configuration domain1 has both virtual users with Maildirs and aliases to forward mail to local users (eg. ...
14 votes
3 answers
22k views

How to redirect all outgoing email from postfix to a single address for testing

I am setting up a testing server for a web based application that sends some email notifications. Sometimes testing is performed with real customer data, and for that reason I need to guarantee that ...
4 votes
2 answers
8k views

Postfix: Should I use snakeoil cert or my https cert?

I run a site and have a valid wildcard certificate installed for serving HTTPS pages. I just set up postfix on my Ubuntu host and by default its configuration includes: smtpd_tls_cert_file=/etc/ssl/...
-2 votes
1 answer
646 views

Issues sending and receiving mail, Dovecot, Postfix etc

I have been trying to fix my mail server for 3 days now. I'm not really new to Debian and Apache and such but I am new to Dovecot and Postfix. At this point I have set up the virtual users and the ...
0 votes
2 answers
7k views

Can I use /etc/aliases for multiple domain mail server?

I have server1.com and server2.com both pointing to the same server. I wish to make all email sending to @server1.com and @server2.com going to the same mailbox in that particular server. I searched ...
2 votes
0 answers
2k views

Postfix on server with multiple IP addresses sends mails with wrong HELO in header

I have a VPS with multiple IP addresses: venet0:0 x.x.x.2 venet0:1 x.x.x.3 venet0:2 x.x.x.4 venet0:3 x.x.x.5 All IPs have A records m2.domain.com -> x.x.x.2 m3.domain.com -> x.x.x.3 m4.domain.com ->...
0 votes
2 answers
2k views

Postfix Failed to Receive Email

I am trying to set up a mailing server with postfix and dovecot in ubuntu 12.04 following this guide. All seems to have worked out correctly and when I try this echo test | mail [email protected] ...
6 votes
3 answers
41k views

Postfix relay host connection fails: timed out while receiving initial server greeting

I have an Elastix server box that I want to send email notifications of voice mails from. I'd like to send them through our company email (hosted by shared web host provider Bluehost). I have followed ...
2 votes
1 answer
3k views

SASL PLAIN authenticating with primary domain, but not with virtual domain

Postfix + dovecot and sasl. Works so far with 1 domain. Added a virtual domain. Incoming mail for this works. Outgoing however has SASL authentication failing. Why does it fail I don't know. /etc/...
0 votes
1 answer
2k views

TLS/SSL mail server Certificate installation for Postfix/Dovecot Mail Server Setup

I have tried to setup a my own web-server with mail server, (I am not a linux export just following some tutorials), webserver setup with Nginx,PHP-fpm and MySQL seems to be successful, then i moved ...

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