Ubuntu :: Postfix - Can't Send Email To 1and1 Mail Server

Aug 9, 2010

what do I need to change in postfix/ dns to send email to one one of the email server hosted by 1and1.

I'm using zenoss to monitor system/ network and devices. I wanted to setup email notification , so I installed postfix. All works fine when I use my private account on yahoo or hotmail. but when I specify email account that is hosted by 1and1 I receive error 421. "

xxxxmyserver postfix/smtp[5399]: B0A5B22A06: to=<1and1emailaddress>, relay=mx00.1and1.co.uk[212.227.15.169]:25, delay=0.8, delays=0.04/0.02/0.62/0.12, dsn=4.0.0, status=deferred (host mx00.1and1.co.uk[212.227.15.169] said: 421 invalid sender domain 'xxxxmyserver' (misconfigured dns?) (in reply to RCPT TO command))

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General :: Send Mail To Email Account Even After Installing Postfix?

Jan 12, 2010

I've been trying to send mail to email account even after installing postfix but am not able to do so.My distro is Centos 5.4. I followed the Centos user guide to install and configure postfix into the server,

Code:
http://wiki.centos.org/HowTos/postfix
but still didn't receive any email.

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Nov 19, 2010

I'm running SUSE linux Server version 11. I want to configure mail server with postfix & cyrus-imap. For that, i have read many documents in Internet by i met issues. I'm running DNS in this server & it's ok Now I cannont send mail through command line.

[Code]....

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CentOS 5 Server :: How To Send Email Outside LAN Using Postfix

Jun 2, 2011

How can I send email outside my LAN using postfix? Actually, I can received email from outside like yahoo. hotmail etc.. But when I am trying to send outside in my mail server here is the error I got..

Jun 2 21:19:51 microtontech postfix/smtp[4434]: connect to k.mx.mail.yahoo.com[98.139.54.60]: Connection timed out (port 25)
Jun 2 21:20:10 microtontech postfix/smtp[4435]: connect to

[code]....

I try to telnet yahoo.com and smtp.pldtdsl.net 25 here are the result, but when I try to telnet smtp.pldtdsl.net its showing trying only.. I checked if my ISP is blocking port 25 isn't. (I forgot what is the website I used to check if my ISP port 25 is block) I try already to used in my relayhost the [URL] but the email I sent still bouncing..But I remember last time when I was installed Hmailserver in my Win2K3 machine I sent email outside but I cannot received..

[code]....

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Server :: Configure Postfix To Send Emails From One Email

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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Server :: Cannot Send Mail Outside LAN With Postfix

Apr 4, 2010

My problem is that I cannot send mail with postfix. For all mail I get connection timeout Example: (delivery temporarily suspended: connect to [URL] Connection timed out)

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Server :: Postfix Can Not Send Mail

Jan 21, 2011

telnet localhost 25 when rcpt to:mike@test.com ,report error: 451 4.3.0 <lisi@test.com>:Temporary lookup failure

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Server :: Postfix Wont Send Mail?

Jan 8, 2011

I'm having a problem with Postfix sending email. To be more specific, Postfix sends mail perfect but when my web server running webmail (RoundCube) connects to my mail server to send email, it fails & there is nothing in the logs that explain to me why:

Code:
Jan 8 11:53:02 mail dovecot: imap-login: Login: user=<carlos>, method=PLAIN, rip=192.168.0.201, lip=192.168.0.200, mpid=2161, TLS
Jan 8 11:53:02 mail postfix/smtpd[2162]: connect from www.iamghost.org[192.168.0.201]
Jan 8 11:53:02 mail postfix/smtpd[2162]: setting up TLS connection from www.iamghost.org[192.168.0.201]
Jan 8 11:53:02 mail postfix/smtpd[2162]: Anonymous TLS connection established from

[Code]...

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Server :: Unable To Send Mail Using Postfix

Jun 10, 2010

I have recently installed the ISPCP web hosting control panel. It seems that after a while running and testing I can receive but I cannot send e-mail. basically I get an error which goes

Code:

postfix/smtp[5939]: connect to alt1.gmail-smtp-in.l.google.com[72.14.213.27]:25: Connection timed out

I have, in the recent past, been able to send e-mail so I know that there is something that has gone wrong with my configuration, which I cannot. I post here my master.cf and my main.cf files as well as the mail.log file and the mail.warn....

Ubuntu Server 8.04 LTS 64x
spCP 1.0.4 OMEGA
build: 20100228
Codename: Priamos

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Ubuntu Networking :: Configure Postfix As Localhost Smtp Server And Send Email?

May 25, 2010

I'm trying to set up a basic smtp server on my local computer that I can send basic, unencrypted email through on port 25. I installed postfix, and I chose the following options:

Internet Site,
System Mail Name: localhost
Root and postmaster mail recipient: I left this blank
For other domains to accept mail, I entered : NONE, localhost
No force synchronous mail updates
Local networks: 127.0.0.0/8

[Code].....

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Server :: Postfix Cannot Send Email From Thunderbird/Squirrelmail To Recipient Behind Firewall

Mar 22, 2011

My company email server has been working flawlessly for the last 5+ years. Recently, one of our clients put their email server behind a firewall (an assumption on my part; details below). Ever since, email sent from within the company (192.168.xxx.xxx internal address; all computers and server is behind a NAT firewall [Netgear FVX538]) is either being sent to the client after some delay (if email is sent using Outlook) or is being deferred until the messages expire (Thunderbird, Squirrelmail, etc.). Email sent to the client from anywhere outside the company (using Thunderbird, Outlook or any other email client) is also delivered without any problems (usually after a short delay).

All other emails to the World are being sent without any problems at all (both inside and outside the company; using any email client or webmail). I did contact the client's postmaster, but the client, being a large government agency, will probably not address the problem (if it is on their side) anytime soon. I am not sure if I can do anything from my end to solve the problem. Ever since the problem with the client began, I added two statements to the postfix configuration file (smtp_pix_workaround_delay_time = 20s and smtp_pix_workaround_threshold_time = 0s); this seemed to a bit - it reduced the delay for emails sent via Outlook to a few minutes (as opposed to 30+ minutes); emails sent using Thunderbird/webmail are still being deferred.

Server details: Dual quad-core processor machine, 32 GB RAM, dual 1 gbps network, running Fedora 14 (64-bit; loosely modeled along the lines of Perfect Server (with ISPConfig2) as described on the howtoforge website). Running Postfix (v. 2.7.1), Dovecot (v. 2.0.9).

Postfix details:

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
body_checks = regexp:/etc/postfix/mbl-body-deny
broken_sasl_auth_clients = yes
command_directory = /usr/sbin

[code]....

I emailed the client's postmaster suggesting they disable smtp fixup. But still, what bothers me now is that Outlook works (both within and outside the company) while Thunderbird, webmail, etc. (used by ~90% of the users) do not. In addition, all email clients from outside the company can send email (authenticated via the company server) to the client without any problems. Is there anything I can do on my end to make non-Outlook clients work within the company (webmail is hosted on the company server; so, it would have an internal address as well)?

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Dec 7, 2010

I just set up a new email server on Debian Lenny. It's Postfix for MTA and Dovecot for IMAPS server. I use Dovecot for authentication. I have two UNIX users on the system (except root), one was added before the installation of Postfix and Dovecot. I'm not doing any virtual things, just plain UNIX users and one domain on a dynamic IP. The first user, "webadmin" can send and receive emails just fine through the server from my mail client.

Now I just added a new user, "scarleo", and it turns out I'm unable to send and receive emails with this account. If I log in (SSH) with scarleo I can use bash mail to send emails, works fine. scarleo can also receive emails from webadmin and can connect to Dovecot to read emails. However scarleo cannot send or receive to or from anyone outside the server from my mail client. I have restarted both Postfix and Dovecot after adding the user. Do I have to do something else to make this account work like webadmin's?

A few relevant lines from mail.log: (I've modded my real IP)
Code:
Dec 7 17:44:42 homer dovecot: imap-login: Login: user=<scarleo>, method=PLAIN, rip=96.136.112.229, lip=192.168.0.18, TLS
Dec 7 17:44:42 homer dovecot: imap-login: Login: user=<webadmin>, method=PLAIN, rip=96.136.112.229, lip=192.168.0.18, TLS
Dec 7 17:45:16 homer postfix/smtpd[5915]: connect from bredband.comhem.se[96.136.112.229] .....

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Jun 22, 2010

i am trying to set up a mail server that will support users in a LAN in my school. I am using postfix on a Mandrakelinux distro.

I can send mail when I am root to the other user on my (same) machine both when in command line (mail command) and on Graphical mail client (Kmail ) but the user (sam) cannot send mail to the root account on either interfaces.

I followed the postfix configuration settings on John_Wiley_-_Redhat_Linux_Networking_and_System_Administration_3rd_Edition.

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General :: Email Being Traced / Monitored (Postfix Mail Server)

Mar 30, 2011

I happened to know my incoming and outgoing emails are being monitored by my superior. Just wondered, can i check from the mail header to find out all my emails (incoming/outgoing) are automatically being cc to another email account? We're running mail server using postfix.

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Server :: Postfix Local Users Unable To Send Mail

Jul 13, 2011

We are using postfix for relaying our internal system generated mail to other domain through google apps. All client servers able to send mail through the postfix server, only user of local postfix server(root, etc) unable to send mail with command like mutt, mail.My detail configuration given below:

Code:

postconf -n

output

Code:

alias_maps = hash:/etc/aliases
command_directory = /usr/sbin
config_directory = /etc/postfix

[code]....

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Apr 13, 2010

I want to configure Postfix mail server to send bulk mails to others domains only but they could not send to me. steps to configure Postfix to send bulk mails and what packages required for it.

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Dec 25, 2010

I recently had the need to relay SMTP mail through our organizations hosted MS Exchange server. I had to do a little troubleshooting, so I wrote a concise summary of the procedure I followed.

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Feb 24, 2010

I have users [URL] unable to send email to [URL]. [URL] user also unable to send email to [URL]. But both email addresses are fine as they can receive email from others or from [URL] and [URL]. I able to telnet mail server 110 and 25, no problem. Version: ESMTP Sendmail 8.12.10

Mail Log:

Feb 23 11:36:35 mail sendmail[16228]: o1N3aZxt016215: to=<xxx1@gas.com>, ctladdr=<xxx@abc.com> (501/501), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=442918, relay=gas.com, dsn=5.1.2, stat=Host unknown (Name server: gas.com: no data known)

[code]....

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Server :: Use Postfix Send Mail Return 'relay Access Denied' ?

Jan 24, 2010

my server is Redhat as 5 + postfix +Dovecot .when i use smtp to send mail,it can't to send,the system return "relay access denied" ? This is my maini.cf

Code:
# Global Postfix configuration file. This file lists only a subset
# of all parameters. For the syntax, and for a complete parameter
# list, see the postconf(5) manual page (command: "man 5 postconf").
#
# For common configuration examples, see BASIC_CONFIGURATION_README

[Code].....

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May 29, 2010

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Mar 4, 2011

I'm trying to configure postfix so smart daemon can send out notifications emails. My system will need to send emails to a mail server that is on the same local network. I have not had much luck in getting this to work, and am confused on what I need to setup to do this and how to set it up. Does my system need to be apart of the same domain as the mail server? If so, how do I do this? Is there any restrictions sending emails from the command line as the root user? Do I need to configure a relayhost?

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Dec 27, 2009

I have a CentOS 5.4 nas box that I want to monitor.

I believe I can setup mdadm to mail me when there are issues by addin the following line to /etc/mdadm.cong Quote:MAILADDR root

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Feb 3, 2010

i have a website, there is a button that u click fill out a form and sends u a link to download a trial version of our software, the message gets sent with out html.. i copied a sample below (edited out some personal info)

Code:
Content-type: text/html; charset=iso-8859-1
From: ******.com>

[code]...

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May 15, 2010

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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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Jun 30, 2011

I set up my mail server using the guide here: [URL] I am able to receive mail, I can send mail locally, but I can't send to external addresses. This is in my mail.log: Quote: Jun 30 14:40:43 Server postfix/smtp[10725]: 2FD9322015BF: to=<myemail@gmail.com>, relay=none, delay=1634, delays=1484/0.02/150/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[74.125.65.27]:25: Connection timed out)

This is my main.cf:

[Code]...

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Sep 9, 2010

this is my code at the moment

PHP Code: <?php
if(isset($_REQUEST['email']))&&$_REQUEST['email']!='0'{
$to="chrisathisemail";

[code]....

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Feb 10, 2010

My postfix server will not allow me to send mail except if I am on the server it self.My postfix conf is as follows.

server:~ # postconf -n
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biff = no

[code]...

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Jul 24, 2010

Currently i'm figuring out how to send email notifications to users when services went down in Nagios. I know i need to install and configure Postfix, which i did already. I assume that when i configured to point it to "Satellite mail system" is the correct one instead of other things like "Internet.." etc. So the configurations is when you have installed the Postfix and there would pop a lot of questions right? Other than that, what have i missed?

Oh ya, i remember something. Hmm. I do not have any so-called real smtp server so would that be alright? I heard that installed and getting the Postfix running would be enough as it serves as a MTA (mail transfer agent). So if i do not have any smtp server, the relay host= ' ' what should i put it as?

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Sep 13, 2010

I am trying to setup a simple SMTP server to relay scanned documents from a Xerox machine to email addresses. Unfortunately the Xerox machine doesn't support TSL or SSL so sending mail over port 25 on gets blocked. I have setup postfix on a desktop running Fedora 13 and have been able to set it up to forward the mail onto the correct server (gmail for example). My question is, how do I get the server to encrypt the emails (scanned documents) when sending them over the internet?

I have tried adding:

Code:
smtpd_use_tls = yes
smtpd_tls_cert_file = /etc/postfix/smtpd.cert
smtpd_tls_key_file = /etc/postfix/smtpd.key
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