Software :: Debian - Configuring Postfix To Send Emails
Sep 28, 2010
I'm trying to configure postfix to send e-mails but it is not receiving requests from networks different from its localnet (192.168.1.0/24). Iptables is like this:
Code:
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- 10.0.0.0/8 anywhere
ACCEPT all -- localnet/24 anywhere
ACCEPT udp -- anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
A part of main.cf is like this:
Code:
biff = no
append_dot_mydomain = no
delay_warning_time = 4h .....
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Feb 8, 2011
I'm stuck with postfix. It cannot send emails and I cannot find out why! smtpPort 25/tcp is open. I can telnet localhost with 25, but not the localhosts IP(192.168.1.15). Sendmail is OFF. Here is the main.cf file!
# 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
[code]..
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Apr 25, 2009
I have configured Postfix on a Ubuntu 8.04 box using this tutorial:I can send emails but I cannot receive any email because of a "bad recipient address syntax:"The log from /var/log/mail.info says this:
Code:
Apr 25 14:46:06 360romania postfix/pickup[31716]: 74A682190661: uid=0 from=<root>
Apr 25 14:46:06 360romania postfix/cleanup[32402]: 74A682190661: message-
[code]...
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Apr 25, 2009
I have a web application installed on a Debian server that sends out a lot of e-mails. Is there a way to configure Postfix to retain the messages in a queue and send all of them at midnight for example
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Feb 8, 2011
I'm experimenting with with mail-servers now and I'm trying to configure postfix to send emails from one email(pop3 is gmail) to any email outside the local network. Server is Ubuntu 10.10 with the last updates.
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Jan 29, 2010
I just configured my first postfix mail server today. Everything is working correctly except for the fact that on all outgoing emails instead of the mail format being user@mydomain.biz it says user@hostnameofpostfixserver. I've looked everywhere I can think and I cant see where I'm substituting the host-name of the server for the domain name of my email. Where else could it be?Below is my main.cf. I am running ubuntu 9.10.# 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
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Sep 27, 2010
I am would like to configure postfix to send and receive email across Ethernet (just for now). I have two machines with postfix installed both using Ubuntu 10.04 directly connected with an ethernet cable. I have successfully configured a machine to send email to gmail, however i have been unsuccessful in having these machines send email back and forth. I have been interested in setting up a little mail server at home and have just been trying some simple projects with postfix to start with. At this moment i am using ip addresses and am not concerned with using a dns server
machine A: has a fixed ip of 10.137.202.1, hostname = mail.me.com,
machine B: has a fixed ip of 10.137.202.20, hostname = mail.ubuntu.com
in the /etc/hosts file I map each hostname to ip address receptively (not sure if a good idea, but at this point I have been trying everything)
So I will execute from Machine B
echo "Here is a message" | mail -s 'Hello' cmd@[10.137.202.1]
I currently get from mail.log timed out while receiving the initial server greeting. I get from mail.err valid hostname or network address required in server description #[10.137.202.1]. Obviously when I run the mail command from cmd user i do not receive anything. I can receive mail from myself if from machine A, I sent an email using the command above. I would just like to send email from machine B and receive it on machine A via direct Ethernet connection. I have been through postfix documentation and have also read the postfix definitive guide and have had no luck.
Here is a recent main.cf as I have tried getting this to work (this is for machine A however, similar for B)
# 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 .....
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Aug 13, 2010
I have a server with a domain running and im trying to resolve the mail server but i can't see where to start. I use OpenSuse 11.2. Basically, for starting, i want postfix to send incoming emails to a php script or perl. for outgoing emails i guess that i could use php mail function and i will see what else to have. I configured the dns. I do a dig.mydomain.tld MX and i get the following:
mydomain.tld3600INMX0 mail.mydomain.tld
mail.mydomain.tld 3600INAmyNumericalIp
So now my system is receiving MX content but i dont know what to do.
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Apr 29, 2011
My issue is that i'm trying to send emails with postfix and gmail as the mail relay,i'm trying to send emails to my self by sendmail -bv user@gmail.com
In the logs, i can understand that it been delivered to the destination,
taken from: /var/log/mail.log:
Apr 30 00:05:23 moni postfix/pickup[10490]: 9C7552170C: uid=0 from=<root>
Apr 30 00:05:23 moni postfix/cleanup[10495]: 9C7552170C: message-id=<20110429210523.9C7552170C@moni.localdomain>
Apr 30 00:05:23 moni postfix/qmgr[10491]: 9C7552170C: from=<root@moni.localdomain>, size=283, nrcpt=1 (queue active)
code....
When login in my gmail account i can't see nothing under the sent / inbox / spam folder.
it's seems like the mail are been sent.. but nothing is happening.
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Aug 17, 2011
I'm writing a script that will send an alert email given certain conditions. I have the impression that sendmail is what I need to do that. I just don't know how to use sendmail at all. I assume I have to set it up like a typical mail client so that it has a mail server to log into to send from.
I've looked through the man pages, but I can't find anything in plain English there on how to set it up, or how to use it once it is set up.
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Jan 7, 2016
I am studying Debian, the postfix service this night cannot send and recevied outside email,internal work fine, i check the log found is show "no space left device"
i run command df -i
found
/dev/mapper/mailbox-var use 100%
What is the file for? how can solve it?
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Sep 25, 2010
is there any HOWTO for configuring Webmin Postfix server with multiple postfix virtual hosts? Seems to be a tough challenge to set it up without any easy manual..
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Apr 28, 2011
I've installed Postfix MTA in Xubuntu. Where are all the emails stored in my Postfix server?
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Jan 18, 2010
i'm not a techie but have tried my best to solve the issue without success. 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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Dec 29, 2010
I am trying to find a way to tell postfix to forward all emails from
dbsupport@thisdomain.com
and
helpdesk@thisdomain.com
to
be sent to admins@thatdomain.com, but it is not working. I am trying transport maps. The content of my transport file is:
Quote:
helpdesk@thisdomain.com smtp:admins@thatdomain.com
Quote:
dbsupport@thisdomain.com smtp:admins@thatdomain.com
Both [URL] and [URL] are on box1 as an alias in the /etc/alias file like this:
root: helpdesk@thisdomain.com
root: dbsupport@thisdomain.com
how to get this working?
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Jul 30, 2010
I have lenny with postfix, countier-imap, squirrelmail installed i can send emails but i can not receive any emails.
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Jul 25, 2010
Howto Configuring server to saving outgoing emails? my sys is debian with postfix+dovecot imap mbox for now yes, thats the job of the mailclient by default. Thunderbird does this fine. But sending through php too from different scripts using smtp. Would like save sent emails (all systemwide) in sent folder. How this possible? Only using one catchall adress So there is only one Sentfolder
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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 29, 2011
Running Postfix 2.6.1 on Slackware 13.0.I noticed that if I send an email with a large attachment(namely more than 500 KB) from another computer using this postfix server as an smtp server, it takes up to an hour to send it.It's almost like postfix is configured to send large emails later with a lower priority.The client computer and postfix server are within a GIGABIT LAN so upload 500 KB isn't an issue.
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Mar 2, 2010
Is there any way can read content of email in queue? Or emails sent in few last seconds?
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Feb 25, 2010
I have a CentOS 5.3 system running a recently installed Postfix (I removed sendmail so I positively know it's running Postfix).
I am able to send out email as user root, but when I change to another user on the same server, the mail delivery fails.
Here's what's captured in the /var/log/maillog:
Here's my main.cf
No changes to other Postfix files since install, so they are the default files.
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Jul 20, 2010
We have a number of servers at work, some production and some non-production. We run some java applications on these servers. At present these java applications send emails via an SMTP connection to our live email servers.
In production all is well, the java apps send emails to customers. However, in the non-production environments all emails must not be sent out. Instead they must end up in some kind of generic inbox.
We don't want to mess with the production setup at all and it isn't an option to lose the non-prod emails altogether. So on non-prod we can reference another SMTP server and send all emails there. So far I've set up a postfix, dovecot, squirrelmail email server which appears to work.
how do I config my new email server so that any emails sent from our non-prod server to fred@hotmail.com, bill@yahoo.com, jenny@gmail.com etc all end up in one inbox?
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Sep 30, 2010
Sign emails with OpenDkim + Postfix + Ubuntu 10.04 64x. How-to implement a domain key signature using Postfix Ubuntu based email server. Implementing a domain key will help your outgoing email not being marked as SPAM by the receiving servers that implement DKIM signatures verification., i.e. Yahoo, Gmail, etc.
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Dec 13, 2010
I am using the Postfix SMTP server for sending emails. However I just did a default installation and subsequently someone is sending spam using my SMTP server. I would like some help on securing my Postfix server and to block these mischievous emails being sent from my server.
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Aug 10, 2011
I have nagios and postfix on the same ubuntu box.Postfix is able to send emails out as root and my user id to my gmail acct, but not as user nagios, which does own the nagios process. I haven't been able to find a way to authorize user nagios to send email (really), but I don't know if this is the underlying issue. Frankly I don't care what acct they originate from as long as they arrive.Currently, all notification emails are being dumped locally into root's mailbox. There are no errors in either the nagios.log or the mail.log.I've added my gmail address to the contacts.cfg, replaced it in the nagios.cfg, and put it every other place I could find root's mailbox mentioned. I've also created an alias for root to my gmail acct with no luck (didn't want to do that fearing I'd receive emails for other system events, but it didn't work anyway)
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Mar 18, 2011
I have recently installrf MailScanner on my CentOS 5.5 and followed this instruction [URL] However, my postfix doesn't seems to be working after the installation. All the emails sent (using squirrel) mails are being held at /var/spool/postfix/hold
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Jan 21, 2010
One of our postfix servers is for sending/receiving internal emails only. When a user entered a wrong recipient address, it will take almost an hour for the user to get the "Recipient address rejected" email. What can be done to let the user get the "Recipient address rejected" email quickier.
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Mar 10, 2011
I'm building a replacement postfix email server and I'm getting intermittant loss of sent emails; where: sometimes mail ends up at the recipient (a hotmail address) and sometimes not. Having an offsite relay (or posting directly to the internet) doesnt help either. (Although using hotmail itself as a relay always works despite logged complaints about unchecked ssl certs) Most dissapointingly the log files for the smtp transations are the same for successfully received emails as for the "lost" emails.
[Code]....
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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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Aug 25, 2010
I have evolution set up to send emails using gmail's smtp server. I've always been able to do it with no problems, but a couple of days ago I stopped being able to send emails to gmail accounts. I can send emails to other addresses but not gmail. The same happens with my wife's laptop with ubuntu. The only thing I can think of is that we recently moved and thus changed ISP, but I don't see how that's preventing us to send mails specifically to gmail accounts...
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