CentOS 5 Server :: Cannot Get Sendmail Or Postfix To Send A 220 Response - Nor Respond With Details
Aug 11, 2009
I cannot get either sendmail or postfix to send a 220 response, nor respond with details. See below for sample telnet output. Details: I have a server that requires email, but only for light use. I'm definitely not an expert, but I have set up a sendmail configuration on a previous server. I tried to configure sendmail first and then postfix later, when I couldn't get sendmail working. I'm not sure exactly what the problem is, but I have a feeling the following might yield some important information. Note: this is the result for Postfix, but virtually the same thing happened with sendmail, too. That is, initially the telnet connection would close immediately. Afterwords, I could connect a second time but then it never responded with a 220 banner nor any 250's.
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Sep 22, 2011
todo: I have now running sendmail with milters and auth, dovecot as lda configured with virtual domains / Local User, srs. on centos 5.x
I want to migrate to Postfix with:
at first step the same Local User now with Mbox and there Mails
same milter with macros for auth....
dovecot as lda
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Jul 31, 2009
i currently installed centos 5.3 with postfix. My old server is centos 4.5 final / new 5.3 final. Old server has sendmail / new has postfix. how can i transfer all the mail and settings from the old to the new? also, the old mail server is mail.xxx.xxx and for testing purposes i named the new mail server mail2.xxx.xxx.
when i an ready to put it into production, the new server will need to be mail.xxx.xxx and the old removed from the system. How do i go about changing the name and making sure everything comes out correct?
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Oct 25, 2010
I have a lightweight admin background, but good enough to set up most servers. I have switched from sendmail to postfix for the first time, but I keep going around in circles on the following...
In sendmail, I used to maintain a table (mailertable) where I would redirect email like this
Quote:
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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
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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..
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Dec 12, 2008
I have isntalled a server with Centos 5.2 OS, now I would like to switch from the default sendmail to postfix doing a yum install postfix I've noticed there is already available an rpm version for the OS but I would like to compile my own 2.5 version, I've noticed compiling from source does not allow me to use the mail switcher to tell to the system I'm gonna use Postfix instead of Sendmail as the default MTA while this is possible when I use the "official" rpm version of the package. Now my question is this, would this be a problem? There is some specific procedure/best practice I should follow? Or once compiled and configured Postfix I can safely disable/uninstall sendmail?
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Oct 11, 2010
I recently setup a new Linux server running Fedora 10. For some reason all ping response times are rounded to the nearest 10ms. For example, running the simple command "ping yahoo.com" give the following sample results:
64 bytes from ir1.fp.vip.re1.yahoo.com (69.147.125.65): icmp_seq=12 ttl=57 time=60.0 ms
64 bytes from ir1.fp.vip.re1.yahoo.com (69.147.125.65): icmp_seq=13 ttl=56 time=50.0 ms
64 bytes from ir1.fp.vip.re1.yahoo.com (69.147.125.65): icmp_seq=14 ttl=56 time=40.0 ms
64 bytes from ir1.fp.vip.re1.yahoo.com (69.147.125.65): icmp_seq=15 ttl=56 time=50.0 ms
I could post a larger result set but its all the same... every response is rounded to a multiple of 10ms. This wouldn't be a big deal except that the server is running Nagios for monitoring so accurate stats are important. The Nagios check_ping and check_icmp commands are also returning rounded off results. How can I get ping to simply respond with the actual response times rather than a rounded off number?
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Sep 13, 2010
I am new to Linux, moreso to CentOS, but I can definitely follow walk-throughs and tutorials easily enough.
I am installing a webserver for our small business and decided to go the postfix/dovecot route.
I installed everything based on the walkthrough on linuxmailcom and eve put squirrelmail on top, so users can access via webmail. I am able to send mail just fine, users/folders are setup and working as they should for sending, but I am unable to receive any mail. MX records have been updated to direct mail @mydomain to this mailserver machine. The problem I am having is with port 25... If I do 'telnet x.x.x.x 25' I get no response, just a timeout then back to command prompt. My other ports are fine, and I get the banner for each 110, 143, etc... all ports but 25 work internally and externally, forwarded.
I tried turning off firewall rules, and still, nothing from port 25. Should I try to have postfix listen on another port by editing its' master.cf, or is this is problem with my centOS/Linux instead. I didn't know where to go with this, so I thought the best place to start was here.
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Jul 20, 2010
I have installed Centos 5.4 with Sendmail 8.13.8, i have modified sendmail.mc file and compiled to sendmail.cf with following lines
1. TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')
2. Define define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
3. DAEMON_OPTIONS(`Port=smtp, Name=MTA')dnl
My problem is that when i try to open port 25 with telenet it takes lot of time like more than 1 minute to open session and another 30 - 40 seconds to respond to "ehlo" command.
Also when i try to open telnet session on port 25 in another server it hardly takes 1-2 seconds open session.
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Feb 17, 2010
I have a problem concerning the vacation(auto response). I got a mailserver(smtp.mydomain.com), pop3/imap-server(mail.mydomain.com) webserver(www.mydomain.com, with postfixadmin on it). I use Debian 5.0 So it's like this, I receive mail to smtp.mydomain.com, it get checked for spam with amavisd-maia(Maia Mailguard), then delivered to the pop3/imap-server. I'm guessing there's something wrong with my postfix setup. I activate auto response for my account, when I get a mail it says this at smtp.mydomain.com:
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Apr 30, 2009
I would like to send the logfiles and the CallDetailRecording-files of my Asterisk-server weekly to my email-address.
But I'm having some issues...
This is the command I would use in a script :
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Aug 11, 2011
I'm trying to setup notification function for the Nagios Core which use Mail to send notification.I got an account from Rogers. I have SMTP server, email account with authentication information.My Nagios server is in a workgroup, there is now domain assigned to it, I just use nagiosserver.localdomain in /etc/hosts.I added Rogers SMTP server in /etc/mail/sendmail.mc and Future (AuthInfo) I created an /etc/mail/AuthInfo and add AuthoInfo:smtpserver "U:user" " P: pwd" "M:Plain"I added smtp server in /etc/mail/access for RelayI added root@nagiosserver.localdomain on /etc/mail/virtusertableI regenerated sendmail.cf by user m4 commandrestart sendmail service.When I ran: Mial -s test nagios4ccs@rogers.comIt did not prompt any error message , in the maillog it says the message is queued but It can not be sent out
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Oct 25, 2010
I have a lightweight admin background, but good enough to set up most servers. I have switched from sendmail to postfix for the first time, but I keep going around in circles on the following. In sendmail, I used to maintain a table (mailertable) where I would redirect email like this
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I happily mapped any incoming email address of any valid hosted domain either to go out to it's final destination via smtp, or if the person has a local mailbox, it delivered locally. Any errors could be forced, and a catch-all for the domain could be directed also.
I've struggled with virtual hosts and transport and a combination of the two to come up with the same result for postfix. I have this feeling I'm missing something really simple, or I am not 'getting it' when I'm doing something postfixy and I still have sendmaily expectations. right path so I will at least know I'm pointing in the right direction and working with the right files to achieve my aims? Postfix is so amazingly powerful and flexible, I'm having trouble figuring this bit out.
I have this feeling I just need a calm hand on my shoulder, a friendly smile and a hand pointing me the right way..
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Jul 27, 2011
I am using postfix as spam Mailscanner to protect my mail server running sendmail. The problem is that when I forward an email from MailScanner mail me back with the following error:
<postmaster@localhost.@mydomain.com.>... Real domain name required for sender address (in reply to MAIL FROM command))
Jul 27 13:15:59 smtp postfix/local[28465]: C68AC1000001: to=<root@smtp.mydomain.com>,
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May 1, 2011
I setup Postfix on my Ubuntu 10.04 LTS server but I am getting an error saying: Code: Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 530 530 SMTP authentication is required. (state 14).
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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)
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Apr 6, 2010
I'm running Postfix in slackware 12.1. The mails are stored in /var/spool/mail/username. When a user's mailbox size got more than 200MB, the user can't check their mail. when it happend the log shows:
Apr 4 10:04:11 ns1 popa3d[2391]: Authentication passed for userX
Apr 4 10:04:11 ns1 popa3d[2391]: Failed or refused to load /var/spool/mail/userX
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Mar 19, 2010
I have to configure sendmail to send messages only and not receiving any mails on a linux server when the mail server is on another server.how to configure sendmail?
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Dec 2, 2010
I'm hoping someone here can help, as I've been beating my head on the wall for a week now with little advancement. I've found a number of tutorials on setting this up, however none of them have gotten me 100% of the way there. Here's my situation: home-based Fedora server (Core 8), running sendmail 8.14.2-1. Connecting to hosting company's smtp server over port 587, to bypass Verizon's blocking of port 25.
My /etc/mail/sendmail.mc file looks like this (comment lines removed):Quote:
divert(-1)dnl
define(`SMART_HOST', `smtp2.datarealm.com')dnl
define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 PLAIN')dnl
FEATURE(`authinfo',`hash -o /etc/mail/auth/client-info.db')dnl
define(`RELAY_MAILER', `esmtp')dnl
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Apr 18, 2011
nstalled Postfix + Dovecot + Roundcube on a plain CentOS 5.5 box, let say on "site.com".I cant send or receive emails. When I try to telnet from both localhost and from the outside world, it can not reach the mail server.Testing itself on port 25:
Code:
[root@srv-estudio:~]telnet mail.site.com 25
Trying 200.40.xx.xx..
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Jun 1, 2011
I have configured Sendmail client to send mail to outside network ( Within local domain ), but i am unable to send any mail as i am getting the following error,
[root@cclx10 mail]# cat test |sendmail -v abhilash-o.padmanabhan@hp.com
abhilash-o.padmanabhan@hp.com... Connecting to [127.0.0.1] via relay...
abhilash-o.padmanabhan@hp.com... Deferred: Connection refused by [127.0.0.1]
I have the following configuration in my "/etc/sendmail.cf" file
# SMTP daemon options
O DaemonPortOptions=Port=smtp,Addr=15.146.237.113, Name=MTA
And netstat is showing that sendmail is listening on Port 25 on the IP address which is mentioned.
[root@cclx10 mail]# netstat -an |grep 25
tcp 0 0 15.146.237.113:25831 0.0.0.0:* LISTEN
tcp 0 0 15.146.237.113:25 0.0.0.0:* LISTEN
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Feb 21, 2010
I am trying to set up sendmail on my intranet (home) webserver, so that it will send mail via my ISP. I have searched for similar threads including this thread, but the responses do not seem to have solved the problem. All I want is to call sendmail from Perl, to post myself the responses to a test form I am building, using my normal internet mail address. I do not want to receive or relay mail from any host except the web server itself (127.0.0.1).
I have edited sendmail.mc to define SMART_HOST as my isp's mail server and MASQUERADE_AS to be my local network name (which is not a registered domain - it is just the name I have given my home intranet). I have run make and built a fresh sendmail.cf, then restarted sendmail.
Using my form, I am able to submit the message to sendmail, but after 40 seconds the mail log shows a message
Code:
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Sep 12, 2010
I'm running sendmail 8.14 which sends out thousands of email. I'm getting several timeout error on only a few particular hosts. What I found is almost all of them are Exim 4.69
maillog shows
--> timeout waiting for input from ..@xxx during client greeting
after several tries, I finally got bounce back with
--> 451 4.4.1 reply: read error from xxx.com.
.. Deferred: Connection timed out with xxx.com.
Message could not be delivered for X day
Message will be deleted from queue
When i search though maillog with all of those error and they all seems to be running Exim and they are different mail domains.
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Mar 18, 2011
What configurations will be required in DNS and sendmail server to send mails from one domain abc.com to other domain xyz.com.
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Jul 13, 2010
I have been trying to set up ssmtp so I can send email using Gmail's ssmtp servers. However, when I try to send mail (using mailx), I get the following message:
Code:
Can't send mail: sendmail process failed
Here's the last line from dmesg (the only one applicable, according to the timestamps and message content):
Code:
[484114.608378] sendmail[17975]: segfault at 0 ip b7dbbbf3 sp bfb0dc4c error 4 in libc-2.11.2.so[b7d44000+14e000]
Here's my ssmtp.conf:
Code:
#
# /etc/ssmtp.conf -- a config file for sSMTP sendmail.
#
[code].....
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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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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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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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Jan 22, 2011
I'm currently running Ubuntu 10.10 Server using VirtualBox 3.2.12 r68302. I've setup a LAMP Server and Installed Redmine and I'm going to be starting some projects. The problem I have is that I've linked it to a subdomain thru my hosting, so things are a little more complex for me then usual. Here's the software I've added for this setup:
Ruby version 1.8.7 (i686-linux)
RubyGems version 1.3.7
Rack version 1.1
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how mail server functionality works as well as how to properly set the host of the virtual pc.
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Jun 21, 2011
I try to configure nagios server in my network. In nagios server I need to configure sendmail rely agent. I configured sendmail like given below
Code:
dnl #DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
define(`SMART_HOST', `mail.mydomain.com')dnl
define(`RELAY_MAILER_ARGS', `TCP $h 25')dnl
define(`ESMTP_MAILER_ARGS', `TCP $h 25')dnl
[code].....
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