Postfix is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program.
5
votes
2answers
141 views
Mailman / Postfix Configuration Assistance
I am writing for some help regarding Postfix configuration.
I cannot seem to get Postfix configured properly to transfer mail to the mailing list installed on the same server. I followed many steps ...
1
vote
1answer
48 views
Is there a way to store mail attachments outside of mailboxes?
Nowadays, size limits on mail attachments are less comprehensible by traditional users. I am looking for a way to extract mail attachments as simple files that I would be able to manage elsewhere.
On ...
0
votes
1answer
41 views
Set up an email domain with Postfix and Dovecot
I am very new to the Linux world so please forgive me.
I have a VPS running Ubuntu 12.10 x86 and I have installed Rails3, Nginx, Mysql and Passenger. All are up and running.
I want to set up mail so ...
5
votes
1answer
170 views
Postfix configuration - keep the envelops
I have a postfix server that delivers mail and send a copy of the outgoing mail to a second server for content analysis using the following configuration (addresses and IPs have been replaced):
...
0
votes
1answer
30 views
Can't delete system email
While running Postfix on an Ubuntu, I have acquired a number of test email in an account usr1, and now I want to delete them before starting other testing. However, every time I try to delete using ...
1
vote
1answer
52 views
postfix/smtpd: warning: connect to Milter service unix:/var/run/opendkim/opendkim.sock: No such file or directory
I have problem with postfix on debian after upgrading from squeeze to wheezy.
Postfix was configured to sign messages using dkim-filter. Before update, everything was working flawlessly, now it fails ...
4
votes
2answers
325 views
configure postfix to accept mail from two WANs
I have a mac server but my question has long left the realm of the GUI. My last hope is a unix forum.
I have a cisco router with two WAN ports. The mac uses postfix 2.8.3. I have correctly ...
2
votes
2answers
97 views
fetch data from Incoming mail in postfix
I have configured postfix for my kk.com domain successfully. Now I want to add function as described in below example.
Example:
if someone mail me at admin@kk.com, one php script will fetch ...
1
vote
1answer
23 views
See which file using postfix
I have a - what I think Malware - problem on my site. Using my server to send spam mail. When running top and SHIFT+M I get the following:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ ...
1
vote
1answer
189 views
Use /etc/aliases for outgoing mail relayed by postfix with local domain
I'm using Ubuntu 12.04 with postfix configured as satellite system that relays outgoing mail to Gmail. For sake of example, my registered domain is example.com I want root cronjobs' error output to be ...
0
votes
0answers
24 views
Postfix address resolver + loopback to root problem
Ubuntu Linux 12.04.1 With LAMP stack.
The goal is to setup a web server that can send mail via the PHP mail() function, which uses localhost. The mail must then be relayed to an ISP domain ...
1
vote
1answer
36 views
Postfix uses the interface alias instead of the primary interface
When sending e-mail with /usr/sbin/sendmail (e.g., using a script), Postfix causes the mail to be sent using one of the host's interface aliases (eth0:0, 74.50.122.55) instead of using the primary ...
0
votes
0answers
60 views
Postfix header_checks
I want to forward a copy of the users email which has the specific subject. I have tried the below settings, able to Redirect that particular subject mail. But I want to forward a copy of that mail to ...
1
vote
1answer
125 views
Error when restarting Postfix
I have recently purchased an SMTP server for my web app (I need to send account confirmation emails to my users and I don't want them to go into the SPAM folder, I will also be using it for email ...
5
votes
3answers
2k views
Postfix doesn't send mail, complaining about “Host or domain name not found”
I followed these instructions in order to send mail and here's the Postfix log:
Sep 26 00:46:24 tshepang postfix/smtpd[5728]: 8EE2464931: client=localhost[127.0.0.1]
Sep 26 00:47:44 tshepang ...
3
votes
2answers
429 views
“IPv6 support is disabled” warnings
I get the error while running a script which tries to send emails.
send-mail: warning: inet_protocols: IPv6 support is disabled: Address family not supported by protocol
send-mail: warning: ...
2
votes
1answer
111 views
How to handle bounce mail sent to the VERP address
We have our postfix configured to handle mail for our websites. For every website we have configured a bounce handling user with
local_recipient_maps = hash:/etc/postfix/recipient_maps
The file ...
1
vote
1answer
134 views
Linux: Use maildir instead of mbox
Is there a way to use Maildir instead of mbox on a Linux box?
On some websites, it is suggested to add to /etc/aliases:
myuser: /var/mail/myuser/maildir
I've issued the newaliases command, but it ...
2
votes
1answer
90 views
Port 110 visible to the outside world - necessary or a bad idea?
I just did [a test][1] that told me my gateway's (debian squeeze) port 110 is visible from outside.
It's a box with two network cards, eth0 is for my internal network (192.168.1.0/24) and eth1 goes ...
1
vote
1answer
516 views
Postfix error: Relay access denied
I can't send mail to external email addresses such as gmail.
When I try to send a mail with telnet I get the following error:
Trying 130.xx.xx.128...
Connected to mydomain.com.
Escape character is ...
1
vote
1answer
52 views
When I set up an email server using Postfix, how do I configure it to use my domain name?
I decided to follow this guide, but they only make a passing mention of using a custom domain name:
Insert the following details when asked (replacing server1.example.com
with your domain name ...
2
votes
1answer
321 views
Email Sent via root@domain.com despite modifying /etc/aliases
First, here are the entries I added/modified in /etc/postfix/main.cf file:
mydomain = domain.com
myorigin = $mydomain
relayhost = email-smtp.us-east-1.amazonaws.com:25
smtp_sasl_auth_enable = yes
...
0
votes
0answers
868 views
Mail Server not working?
I am trying to setup mail server since a long time but as I am new to Linux I have unsuccessfully configured it to the best as I could but now I need assistance.
I have installed it using the links ...
2
votes
1answer
97 views
RESOLVED: trouble with postfix install (timing out from client) [closed]
I have just outfitted a basic server (Ubuntu 12.04 LTS /Precise Pangolin) and have installed Postfix and Dovecot, based on the Ubuntu manuals.
https://help.ubuntu.com/community/Dovecot
...
1
vote
0answers
366 views
Setting up SMTP-AUTH & TLS in Postfix
So I have been in the process of installing a Postfix Server on my CentOS 6.2 Virtual Private Server.
I have been following this tutorial:
...
2
votes
1answer
303 views
How to discard mails sent from a specific local user to external addresses?
How can I configure Postfix to silently drop / discard mails that were sent from one of my users to an external address?
I'm already able to discard all mails to external addresses using the ...
1
vote
1answer
141 views
Sender based redirection on Postfix
I'm running postfix on Debian, receiving email for my.com, and I would like all incoming emails from sender.com to be delivered to jack@my.com, regardless of the original recipient.
Emails from other ...
0
votes
1answer
215 views
how to solve postfix errors?
After following several tutorials on setting up postfix at basic level on CentOs for my VPS, continue to get the following:
-bash-4.1# postfix start
/usr/libexec/postfix/postfix-script: line 317: ...
1
vote
1answer
345 views
Which name should be used for myhostname in Postfix's main.cf?
For #myhostname, I should uncomment and put my hostname, i.e. the name I gave my VPS, right?
Or does it just go myhostname = mydomain.net, in other words don't edit the phrase 'myhostname' except to ...
1
vote
1answer
225 views
How can I configure postfix smtp per user?
I have previously used msmtp as my MDA. msmtp has a configuration file with username and password of the outgoing smtp server (eg gmail) stored in my home directory. I've recently changed ...
0
votes
1answer
96 views
postconf -e postfix_mydestination = localhost blah.deblah.com.au
Above is example of command someone used to successfully direct to subdomain but when I try it I get postconf: fatal: missing '=' after attribute name which makes no sense to me when clearly the equal ...
1
vote
2answers
107 views
postfix add single IPv6 address
I have my webserver set up to send out email as a smartserver using postfix and it does not allow any other machines on my network to send mail through it. I've been able to send email from my ...
1
vote
3answers
203 views
antispam techniques in postfix on linux
We have an issue of incoming spam on the server hosting several domains. Its running postfix on CentOS 5.x. Please suggest the techniques that can be enabled on the server to prevent incoming spam.
2
votes
1answer
108 views
CNAME: Mail address gets rewritten
I have a problem with receiving mails. I do not know if my server or the server of the sender is wrong configured.
I have a domain daniel-marschall.de which has following DNS RR:
...
3
votes
1answer
1k views
Configure postfix to send and receive to and from localhost
Does anyone know what needs to be configured for postfix so that emails can be sent to localhost and received from localhost?
e.g. send an email to user1@localhost will:
result in user1 receiving ...
0
votes
1answer
165 views
Force users to change email password every six months
I'm going to build an experimental mail server with Postfix + Dovecot and Mysql for user accounts.
The server will offer SMTP + POP3 + IMAP.
Is there a way to force users to change their mail account ...
2
votes
0answers
136 views
why is FQDN using external IP address
When postfix connects to the FQDN dur.bounceme.net it uses the external IP address:
root@dur:~#
root@dur:~# tail /var/log/mail.log
Aug 28 04:39:45 dur postfix/master[6667]: terminating on signal 15
...
2
votes
1answer
359 views
Protecting postfix from bruteforce attacks
a few days ago I've set up a VPS, including personal SMTP service using postfix + procmail under Debian / Wheezy.
I am already seeing a LOT of hammering onto the SMTP and other ports. Here's an ...
2
votes
1answer
908 views
Add header to outgoing email with postfix
Can someone please provide an example on how to add a
Precedence: bulk
header to all outgoing emails using postfix.
I would like to know what file(s) to create or edit and what I should put ...
0
votes
1answer
760 views
Postfix Configuration - different servers for subdomains and domain
I have a following setup:
1 postfix server: a.example.com that needs to accept all emails for any subdomain on example.com (*@*.example.com) and delivers to mailman account and also send emails to any ...
0
votes
2answers
1k views
Where to find the error messages of Postfix
I cannot sent mail by using Postfix (SMTP) on Ubuntu Server 11.04.
So, there must be some errors,
But where to see the error message?
4
votes
1answer
170 views
Mail Server Spoofing Prevention
I was in the mail logs yesterday when i noticed the following messages.. only there were more like 10,000 odd hits...
Jun 21 10:47:10 exi-svr-2 dovecot: pop3-login: Disconnected: user=, method=PLAIN, ...
2
votes
2answers
392 views
Too many smtpd daemon forks?
I have many forks from smtpd in my process list on my webserver. What does this mean?
Is my mailbox full?
postfix 2662 0.0 0.9 106336 4856 ? S 17:37 0:00 smtpd -n
smtp -t ...
1
vote
0answers
1k views
SMTP Auth - SASL on Dovecot, Postfix and CentOS 6.2 (and Open-Xchange)
I am trying to get open SASL to work on CentOS 6.2. I followed this tutorial:
http://wiki.centos.org/HowTos/postfix_sasl
I suspect it works perfectly for CentOS 5.x so all I really need is an update ...
1
vote
1answer
258 views
Check & filter outgoing mails in Postfix
I am looking for a way to check outgoing mails with rules like :
mails sent to a particular domain
mails sent without subject or with a specific subject
mails with an attachment of a certain size
...
1
vote
0answers
71 views
Information about the 1630/master app
When I run
$ sudo netstat -a --programs | grep LISTENING | grep 1630
I will get this output. Do you know what good are processes running under this app name? Why they I running on my system and if ...
2
votes
1answer
4k views
How to create Maildir directory with enough permissions for Postfix?
I have CentOS 5.5 with Postfix installed on it.
I want to use local delivery agent with default setting, but I want it to store mail with Maildir directory style mailboxes.
When I set the mailboxes ...
2
votes
0answers
123 views
Locating mail users and setup for RT
We have an AD where I work which handles usernames/email, authentication etc and all the rest. I've been trying to find our 'support' email address on there but soon realised that it exists not on ...
2
votes
1answer
356 views
Postfix: Forward/Reroute mails with unknown recipients
I'm running a postfix/dovecot mail server and everything works quite well.
What I want to do now is forward all mails with a recipient that does not have an entry in the local recipient table, to ...
0
votes
0answers
430 views
Postfix SMTP rejects mails from one client, but accepts mails from another [closed]
I have the following problem: My mailserver (running postfix, dovecot, spamassassin) works fine with thunderbird; however, trying to send mails with Android (K-9) or Evolution, even with the exact ...
