Ubuntu Servers :: Closing An Open Host On Postfix?
Jan 4, 2010
I have read many tutorials and guides on how to apply authentication to SMTP on postfix and so far had no look making it work, I do have authentication on dovecot on the pop3 and IMAP servers I have been trying to make this work now for on and off 3 months now and am completely stumped I am running my own server with a dynamically IP address but I have a DNS service to give me a fixed domain name which works. as I am on a dynamic IP I can't send email to external accounts as they need to to through a relay host but I cant set that up until there is some form of authentication on the smtp of postfix even if its just plain-text
originality I ran a windows server with hmailserver which was so easy to setup and use
I have postfix, dovecot, sasld installed
below are my postfix main.cf file and I can post my dovecot if needs be
Code:
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
[Code].....
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Mar 11, 2010
Here is what i do: make clean make makefiles CCARGS='-DEF_CONFIG_DIR="/opt/product/postfix-2.6.5/etc"
-DEF_COMMAND_DIR="/opt/product/postfix-2.6.5"
-DEF_DAEMON_DIR="/opt/product/postfix-2.6.5/libexec"
-DEF_MAILQ_PATH="/opt/product/postfix-2.6.5/bin/mailq"
-DEF_DATA_DIR="/opt/product/postfix-2.6.5/lib"
-DEF_NEWALIAS_DIR="/opt/product/postfix-2.6.5/bin/newaliases"
[Code]...
make install then i got this error: postfix: fatal: chdir(/usr/libexec/postfix): No such file or directory make: *** [install] Error 1 I don't understand why it's checking the usr/libexec folder for the daemons although I've set the folder to /opt/product/postfix-2.6.5/libexec in the makefile. Here is also the cat of my makedefs.out:
[Code]....
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May 11, 2010
I recently installed postfix and squirrelmail. And it doesn't work.
Quote:
> telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.localdomain.
Escape character is '^]'.
code....
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Mar 14, 2010
Running newaliasespostalias: fatal: open database /etc/aliases.db: Permission deniedin my /etc I do not have a aliases.db only an aliases.I cp aliases aliases.db but when I try and install post fix again it gives me the same error and aliases.db goes away.
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May 23, 2010
This is probably a stupid question, but I haven't been able to figure it out on my own.
If I run Amarok and then click on Amarok -> Quit, the main Amarok window disappears but a tray icon remains:
How do I open Amarok again?
Choosing Amarok from the main menu does nothing. Running amarok in the terminal produces:
multi@aux:~$ amarok
Amarok is already running!
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Apr 19, 2011
If a file is opened from the common prompt with something like:
gedit somefile &
Is there a way to close somefile while leaving the instance of gedit still open? My idea is that sometimes I will have more than one file open in gedit. I run a script daily that updates to a log file. The log file is then opened and viewed with gedit.
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Jul 29, 2011
I've recently followed a guide I found online [1] and installed Postfix and Courier on my server machine. I can send emails from the server to any email address but unfortunately I can only receive emails sent from the server - it's only accepting emails sent locally from the host.
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Jul 19, 2010
I have an OpenSuse 11.2 system that is running 2 BBS systems independently, both of which are capable of receiving smtp mail on prot 25. What I would like to do is set up Postfix on the OpenSuse OS to receive all mail for both those domains and then send the relevant mail to the correct BBS. I would therefore have Postfix listening on Port 25 External and the 2 BBS applications listening on different ports on the localhost address. At least that is the plan.
how to do this. I want to do it and still make sure Postfix is secure and not accidentally open up any nasty relay holes etc etc.
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Jun 7, 2011
Tearing my hair out on this one a little bit, having problems sending message from web based PHP form to user inbox.I keep getting: Undelivered Mail Returned to Sender<me@mydomain.co.uk>: Host or domain name not found. Name service error for name=mydomain.co.uk type=A: Host not found.Running these commands:
$ hostname = mydomain.co.uk
$ hostname -f = mydomain.co.uk
$ postconf -n =
[code]....
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Apr 3, 2011
I am trying to set up the IRCD-IRC2 server to allow local chat between users connected to my Ubuntu server through SSH. I have port forwarding all set up to the point when I open port 6667 on the localhost it immediately comes back with":My.Irc.Com 020 * lease wait while we process your connection." Sounds promising. But it's not. It hangs for over a minute, then comes back with "ERROR :Closing Link: [unknown@127.0.0.1] (Ping timeout)" and closes the connection.
I don't want IRC2 to connect to any other servers. I just want it to facilitate chat between other users logged in through SSH as I said. Here is my ircd.conf file
M:My.Irc.Com::BC, Canada:6667:0001
A:Canada:info@irc.com:Notes::SrvName:
P:127.0.0.1:::6667:
I:127.0.0.1::::10
Can anyone tell me what I'm doing wrong?
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Jan 3, 2010
I have a postfix server running on a virtual machine hosted by vpslink.com. I have followed the following configuration guide to install the system with dovecot, sasl smtpd authentication, and postfix as an mta: [URL](I know it says it's a debian configuration, but it seemed legitimate that I could follow it). Anyway, in sending email from my primary email account, I have found that roughly 1/2 of the messages are delivered, and 1/2 of them are rejected with a message similar to the following:
Quote:
[code].....
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Jun 30, 2010
I can't seem to reinstall Postfix. I followed a guide and couldn't get it to work. After I retried a few times I gave up and deleted all files and folders I could find related to Postfix. Well I realized what the issue was and now that I want to try reinstalling Postfix it won't allow me.
When I type:
Code:
sudo apt-get install postfix
Reading package lists... Done
Building dependency tree
Reading state information... Done
postfix is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
1 not fully installed or removed.
[Code]...
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Dec 18, 2010
I am trying to install a mail server (postfix). I followed the instructions (up until SMTP, I do not want that) on ubuntu pages, without any result. I can send mail, but I can't get any.
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Jul 11, 2011
I have been following the guide atand it has all worked perfectly and as expected, except for when it says to run "telnet localhost 25". Instead of getting an ip address displayed as I have seen it is supposed to, it just out puts this."Trying 127.0.0.1...Connected to localhost.localdomain.Escape character is '^]'.Connection closed by foreign host."
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Jan 18, 2010
I have a static IP from local ISP and my computer is configured with 192.168.1.2 (LAN IP).
I have installed ubuntu server 9.04 and want to send emails from my server for which I've configured postfix. But I dont know what to do next.
My questions are:
1. Do i need to install DNS server for using postfix? If not, what should I install to send emails from this server?
2. Do I need to forward any particular port in my router?
3. If I dont have a fully qualified domain, what are the configurations I need to do to send emails?
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Mar 15, 2010
I use Ubuntu Server 9.10 64bit
at first, sendmail was installed and everything was working great. all the email sent from forum and webform I host as been sent correctly in the reception box of the recipient. But I want postfix as MTA to do my delivery to all my virtual domain I host.
when sendmail is uninstalled and postfix installed and all services configured(php included) and restarted(apache included), when I send a email from command line or from web form, the email goes in junk mail for some ISP email address and for gmail and the email did'nt show at all for hotmail. but email sent from forum (phpbb) still goes in reception box like normal email do.
I tried do change the headers, who was working with sendmail, of the email sent from web form without success.
so I tried to uninstall postfix and reinstall sendmail, restarted all service and every thing was back to normal... email sent goes in reception box.
I tried it twice.... sendmail, postfix, sendmail, postfix and now back to sendmail for a working solution until I get postfix working.
I tried with spf entry in my dns, I tried allowed icmp packet from outside with iptables, I tried many different headers for my email. My ip is not blacklisted anywhere.
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Mar 25, 2010
I have a problem setting up Postfix on my home (behind Router/firewall) Ubuntu driven server, I have been trying for days now with no luck. All I would like to do is use the server to send mail (MTA). So while installing I configured it as a satellite system.
file:
/etc/postfix/main.cf
settings:
myhostname = mail.example.com
mydomain = example.com
alias_maps = hash:/etc/aliases
[code]....
I'm getting a 553 From address not verified. I have tried what it suggested from the URL link, but it still doesn't work.
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Apr 7, 2010
I've got a server running 9.10, and I'm having a few issues with SMTP. It's got Postfix and Dovecot installed, and eventually I'll add content filtering, but I need to get past this issue first.
I know there's a lot of posts out there for Postfix issues, but I haven'tbeen able to find one specific to my issue.
IMAP and POP3 work fine through SSL, and the server can send mail without any problems. That's all fine and dandy, but I need to utilize an e-mail client (like evolution or outlook). Everytime I set up a user in Evolution, the smtp connection times out, or is refused. I know it's not a firewall issue. Port 25 is open, as well as 465. So I should be able to connect through SSL. I want to be able to connect through SMTP using the same credentials as IMAP.
Here's my main.cf file:
Code:
myhostname = mail.adamwgay.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
[Code].....
everytime I get things rolling, this issue pops up. I don't know if it's something I'm setting up wrong in the client, or if it's a configuration error on my part in postfix.
I'm also having a bit of an issue with my aliases. I've basically got a lot of addresses going to root, then root going to the main user, but it's not actually delivering the mail to the main user. It sends it straight to root.
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May 3, 2010
I installed and configured postfix per the guide on help.ubuntu.com. Everything seems to work fine with smtp and it says that my emails are being sent, but I never receive them.What could be causing this problem?The local mailbox shows that the email was sent.Mail.log shows that the message was delivered to the mailbox.
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May 10, 2010
I have installed qmail on my 10.04 server (Because I prefer qmail and dont want to use postfix) and I would like to just install courier IMAP/POP server without the Postfix (Or other mail servers).
Is there an apt-get install switch that will install just what I want to install without deps; or at least a way to block unwanted deps from being installed.
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May 26, 2010
I have just built an internal postfix server for sending mail only, it's not accessible outside our network. I will be sending from our domain, Rewriting the from field to abc.com is turned on in the postfix config. A friend is telling me this will not work as they will do reverse lookups on our domain. What does this mean? Obviously the domain the email is sent from is a valid domain. If they do a lookup from the IP the mail came from it would be global crossing, our internet provider? These outbound emails are critical client reports, I want to make sure they are not seen as spam.
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Sep 13, 2010
i want to run a postfix server as a backup mx, but anybody knows how can i collect the fist server mails with this one? this is multipop action but how can i do it with dovecot or any other pop collector?
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Sep 28, 2010
My fail2ban won't block relay attempts (it does block ssh)
mail.log contains lots of
Code:
NOQUEUE: reject: RCPT from 118-167-6-196.dynamic.hinet.net[118.167.6.196]: 554 5.7.1 <333@fgytry.myip.org>: Relay access denied
jail.conf
[Code]....
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Jan 2, 2011
I am setting up an ubuntu server, in order to use it with Joomla.
Does someone knows if is possible to use PostFix as SMTP server for Joomla?
If does; would be necessary to install IMAP or POP3, Webmail etc if I just want to send automatics mails via Joomla.
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Jan 12, 2011
I am setting up a mail server on an Ubuntu 10.04 LTS desktop. I am using the tutorial at [URL] to do it, and have followed it (i believe) to the letter. However, when i try to use postfix, this error appears in mail.log
server postfix/smtpd[14270]: NOQUEUE: reject: RCPT from smtp110-mob.biz.mail.gq1.yahoo.com[98.136.185.201]: 554 5.7.1 <smtp110-mob.biz.mail.gq1.yahoo.com[98.136.185.201]>: Client host rejected: Access denied; from=<myemail@yahoo.com> to=<admin@mydomain.com> proto=SMTP helo=<smtp110-mob.biz.mail.gq1.yahoo.com>
and it will not recieve.
My main.cf: (mydomain is replaced by my domain in the file)
Code:
smtpd_banner = $myhostname ESMTP $mail_name Welcome!
biff = no
append_dot_mydomain = no
readme_directory = no
[code]....
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Feb 21, 2011
I currently have a postfix / dovecot server running on one ubuntu server with nullmailer relaying webmail on a different server. This is currently working except the mail server is rejecting incorrect addresses which results in the messages being stuck in the nullmailer queue on the webmail server. Is it possible to force postfix to accept and manage all relayed messages from webmail, or is it possible for the nullmailer to manage the bounced messages correctly?
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Apr 30, 2011
Topic says it. Postfix was receiving emails just fine on 10.10, did the upgrade, now every host is unkown...even though I can dig -x from the machine and resolve.
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May 8, 2011
EDIT: Change the topic, see post #3
I've been following this guide: http://flurdy.com/docs/postfix/
And done the points up to "Advanced mail server" and are trying to test mailing mail@mydomain.com to mail@mydomain.com (yes, the same inbox) using Thunderbird, through my own DNS, from the server.
But I get the following error: The message can not be sent because the connection to SMTP server mydomain.com timed out.
And when I check /var/spool/mail/virtual where the mailboxes are supposed to be stored there are none.
So I'm wondering how I create a mailbox with postfix.
I can add that I am quite a noob at linux but have to do this in a school project.
I'm using ubuntu server 10.04 32bit with GUI (yes I know, I know)
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Mar 29, 2011
I've just installed Debian Squeeze from a live CD. When I open a web browser (be it iceweasel or epiphany) and try to go to google.com, it tells me it can't resolve the host name. [Edit: They do, however, allow me to go anywhere on debian.org, minus the search feature] I also get the same error when I try to go to my website running on a local server. However, when I type the server's IP address (192.168.0.10), it goes to the website fine. Basically, any program I run that needs to resolve a host name returns an error, with the exception of the host command:
I've tried changing my DNS server IP from 192.168.0.1 (my router, configured to provide DNS) to 192.168.1.254 (my internet modem, also configured to provide DNS). That didn't help any. Then I changed my DNS server IP to the same one used by the modem, and now everything works.
I've tried googling my way out of the issue, and I've found where someone had the same issue as I've got and fixed it by adding "blacklist ipv6" to their /etc/modprobe.d/blacklist.conf file, but that didn't work for me.
So, recap: Why does resolving domain names fail for certain applications (except the "host" program) when the DNS server IP is that of my router or modem (which works fine for all of my other computers), but suddenly works when I point the computer straight to my ISP's DNS servers, and how can I permanently fix the problem?
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Jan 16, 2010
I'm having a problem with a new install of postfix... it won't relay mail to external domains. Internal mail is fine.I'm using virtual_mailbox_domains so that I can have multiple domains, and I've set dovecot to use local files with encrypted passwords.Here's my main.cf
Code:
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
[code]....
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