Sendmail To Qmail Migration

Mar 6, 2007

I am switching servers, and the new one uses QMAIL. It was easy to move existing emails between servers when both used sendmail, however ....

Is there a conversion tool or proceedure? I searched but was unable to locate anything online.

QMAIL is not a replacement on an existing server, it is installed on a new server (working fine) and I must bring existing sendmail data over.

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VPS Provider With Qmail Or Sendmail

May 4, 2009

Are there any VPS providers with verifiable expertise in either qmail or sendmail?

Acceptable demonstration of expertise would include at least one long-term employee with one or more of: citation in respected MTA related reference book
useful tech posts to any related email list/forum/whatever

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Jul 13, 2007

I have few cpanel server, but I have got a question. When mails send using script, does it use exim or sendmail? Are these different? From my understanding exim uses sendmail as MTA, am I right?

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Qmail Sendmail Failure

Jul 2, 2007

I have a weird Issue with my Qmail program. It happened when I separated webmaster@domain, postmaster@domain, and admin@domain into separate e-mail accounts, instead of having them as aliases of each other. Now the standard server and anti-virus automated e-mails all get bounced, and the bounce messages are overwhelming my admin account.

Also randomly some important messages from approved senders also get bounced and end up in there, but with the sheer quantity of messages (100s per day) I have no way of going through and filtering them out. All spam get's failure notice's, but that's how it should be.

I'm a web designer, not a webmaster, but I ended up in charge of this and can't figure out how to fix it. Some insight into the possible cause would be much appreciated.

Here's a sample e-mail:


Hi. This is the qmail-send program at
I tried to deliver a bounce message to this address, but the bounce bounced!

The address you used is not a vaild e-mail address at Domain. If you believe this is an error send an e-mail to

--- Below this line is the original bounce.

Return-Path: <>
Received: (qmail 32529 invoked for bounce); 2 Jul 2007 05:30:22 -0400
Date: 2 Jul 2007 05:30:22 -0400
Subject: failure notice

Hi. This is the qmail-send program at
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

The address you used is not a vaild e-mail address at Domain. If you believe this is an error send an e-mail to

--- Below this line is a copy of the message.

Return-Path: <>
Received: (qmail 32519 invoked by uid 111); 2 Jul 2007 05:30:21 -0400
Date: 2 Jul 2007 05:30:21 -0400
Message-ID: <>
From: (Cron Daemon)
Subject: Cron <drweb@localhost> /opt/drweb/
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/var/drweb>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=drweb>
X-Cron-Env: <USER=drweb>

Dr.Web (R) update details:
Update server:
Update has began at Mon Jul 2 05:30:05 2007
Update has finished at Mon Jul 2 05:30:21 2007

Following files had been updated:
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.476 / Virus Database: 269.9.14/883 - Release Date: 7/1/2007 12:19 PM

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Sendmail/qmail Working Sporadically

Dec 14, 2006

I've just moved over to a VPS package with startlogic and am running into a problem with having mail sent from my new server. Basically, mail is backing up in the mail queue and is failing to be sent, but then after a long time (a few days) it, or at least some of it, will suddenly be sent successfully for no apparent reason.

In the meantime the mail is backing up in the mail queue. Looking at the qmail logs I'm seeing lots of "Sorry,_I_wasn't_able_to_establish_an_SMTP_connection" type of errors, and occasional "Sorry,_I_couldn't_find_any_host_named_localhost.localdomain" errors (though the SMTP ones are far more common place).

I've gone through the plesk/virtuozzo mail server options and they seem fine, and it does send some mail through, just very sporadically and up to about 5 days late.

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Email (qmail, Sendmail) Problem - Not Sending

Jul 31, 2009

I am having problem with qmail. I have forum and users are not getting emails send via forum.
I don't care about receiving e-mails and I never do. All I want is for outgoing mail server to be working.

Any ideas how to troubleshoot? Also, I think qmail came as a default (preinstalled) on my server. Is there some other program I should rather use for my purposes? (Again, all I need is *outgoing* mail server). I am using CentOS.

Here is output of 'ps aux' command, related to mail services ....

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Qmail Or Sendmail Or Postfix With WHM Other Than Exim Mail SMTP

Apr 21, 2008

Can i use Qmail or Sendmail or Postfix with WHM other than exim mail SMTP.

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Install QMAIL Mail Server With Qmail Admin And All..

Aug 24, 2007

i have a fedora core 4 server.. and i want to install a good Qmail email server to host some emails of diferent domains..

On searching i found that Qmail should be install with those associated programs/system for a better server :

Qmail itself
EZmlm and EZmlm-idx
Courier-imap/imaps with Courierpassd
Squirrelmail web mail program ......

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Apr 6, 2007

i have two issues:

1) I had disabled the php mail() function due to spam, but this has stopped so many hosted scripts to stop emailing their users... how do I enable that function again?

2) in a failed attempt to fix #1 (i thought it was sendmail which caused it) sendmail has stopped sending in or delivering emails... not quite sure why this happened eventhough I backed up sendmail before working on it and reverted back when i failed to resolve the issue?

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Big Sendmail

Aug 14, 2007

when I send mail with mail() function (on my forum ) I can't resieve it I have
when I execute tail -f /var/log/exim_mainlog

I have :

2007-08-14 17:29:43 1IKxOx-0002uq-Qi == R=localuser T=local_delivery defer (13): Permission denied: cannot create //mail

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PHP Sendmail

Jul 31, 2007

My website is running of a windows server, and so doesn't let PHP sendmail work .

I only remembered this recently, and now know why I have been loosing out on clients.

Is there a work around to this? i.e possibly some sort of script that emulates the linux sendmail? Note: I don't have access to the windows server config, it is a shared hosting account.

As I was on windows and hated my hosts spam protection (took almost 3 hours for the spam filter to confirm safety of emails from gmail servers) I moved the email system to an external company, that now manages my pop3/smtp etc. (not sure if this makes any difference - but may as well explain it just incase)

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Aug 1, 2007

I have installed sendmail program on the server and when I try to send email to any external address, it is trying to connect to localhost. Am I missing anything here?

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Relay Via Sendmail

Mar 31, 2008

I have found a bunch of articles to setup Sendmail as a mail relay, but none have been successful for me or the articles are very outdated. Anyone have a 'stupid-proof' set of current instructions on how setup Sendmail Pop before SMTP? This is a CentOS 4.5 Box with Sendmail 8.14.2/8.13.1 and Dovecot. Any successful guidance would be appreciated!

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Configuring Sendmail

Jul 14, 2009

how to which will help me to make a correct configuration of mail server. I want to set up a mail server with e.g three domain names and all three domain names will have few similar email addresses like info, sales, marketing and so on. I know that this can be done by using control panels but I am not big fan of control panels I want to do a pure Linux administration using the command line.

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Sendmail Tightening

Mar 19, 2009

I haven't used Sendmail in a while and would like to clarify a specific setup.

Suppose we have a box hosting a handful of clients, thus it is a Shared setup.
Suppose we have Sendmail sendmail-8.13.1-3.3.el4 on a CentOS 4.7 Final installed with 0 extra configuration other than the default one.

Such setup allows on to relay via the localhost method through php/cgi scripts or even manually through sendmail binary.

Ideal setup would be one where I would have the ability to specify into a file, the usernames allowed to relay email. E.g

if /etc/passwd contains


than ideally I'd like to pick 'baduser' + 'spaminguser' and disallow them the ability to relay through the localhost.

I should not know anything about their domains or where they are sending.

A general directory setup might be



Thus, the server has 0 more than a barebones installation of Sendmail with the following configuration
VERSIONID(`setup for Red Hat Linux')dnl
define(`confTO_CONNECT', `1m')dnl
define(`ALIAS_FILE', `/etc/aliases')dnl
define(`STATUS_FILE', `/var/log/mail/statistics')dnl
define(`UUCP_MAILER_MAX', `2000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confAUTH_OPTIONS', `A')dnl
define(`confTO_IDENT', `0')dnl
FEATURE(`mailertable',`hash -o /etc/mail/mailertable.db')dnl
FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable.db')dnl
FEATURE(local_procmail,`',`procmail -t -Y -a $h -d $u')dnl
FEATURE(`access_db',`hash -T<TMPF> -o /etc/mail/access.db')dnl
DAEMON_OPTIONS(`Port=smtp,Addr=, Name=MTA')dnl

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Sendmail To Exim

May 18, 2009

I've got a chroot setup and I'm currently using mini_sendmail but I'm getting:


Deferred: 451-The server has reached its limit for processing requests from your host

I'm assuming thats because I don't have Exim on this server, but I would like to send the mail to Exim on my mail server.

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Sendmail Redirect

Jun 16, 2008

A spammer has sent a ton of users a phishing email requesting the users password...

I work for a regional ISP, and we deal with alot of elderly people who would probably send him a response with a password... I looked over the mail log and one person did respond back to him...

Basically... I want to do like... a virtusertable entry that forwards any email sent to HIM... to ME...

so basically... his email is for instance:

I want to do something like this in the virtusertable (I understand it probably cannot be done thru the virtusertable):

This way I can alert the people who DO try to send him emails that the email was stopped and to never respond with a password.

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Sendmail Not Work (

Nov 9, 2008

I sent email through php function mail - false.
Open putty ->
php -r 'mail("***","test","jjjjjjjj";'
sh: /usr/sbin/sendmail: No such file or directory

SENDMAIL not installed ?

CentOs 5

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Sendmail Configuraion

May 3, 2007

Our mail server is rejecting port 25 connections, when anyone trying to send email. We are running sendmail. What configuration file needs to check? And what needs to be changed?

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Sendmail- Between Two Hosts

Oct 23, 2007

on a sendmail issue that I'm seeing, to which both my hosts are saying "nothing wrong at this end".

Some background:
A few months back, I moved my from SLHost to another host. But I forgot to remove the account in WHM at SLHost until a day or two ago.

Since then, mails generated by the server (eg, from a PHP script, or the cron messages) are not getting to the account - they're just sitting in the mail queue. I can use POP3 to send mails from accounts on SLHost to without any problems.

Some diagnostics:


Message 1Iju1W-0001a9-G6 is not frozen
delivering 1Iju1W-0001a9-G6
Connecting to []:25 ... connected
SMTP<< ESMTP Exim 4.68 #1 Tue, 23 Oct 2007 08:01:17 -0500
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.
SMTP<< Hello []
250-SIZE 52428800
250 HELP
SMTP<< 220 TLS go ahead
SMTP<< Hello []
250-SIZE 52428800
250 HELP
SMTP<< 250 OK
SMTP<< 451 Temporary local problem - please try later
SMTP<< 503-All RCPT commands were rejected with this error:
503-Temporary local problem - please try later
503 Valid RCPT command must precede DATA
== R=lookuphost T=remote_smtp defer (-44): SMTP error from remote mail server after RCPT TO:<>: host []: 451 Temporary local problem - please try later

; <<>> DiG 9.2.4 <<>> mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3132
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1





;; Query time: 1 msec
;; WHEN: Tue Oct 23 08:03:33 2007
;; MSG SIZE rcvd: 123

So, that seems to be OK - the server at SLHost recognises that mail should go to the IP listed for the new account.

WARNSOA REFRESH valueWARNING: Your SOA REFRESH interval is : 86400 seconds. This seems high. You should consider decreasing this value to about 3600-7200 seconds (or higher, if using DNS NOTIFY). RFC1912 2.2 recommends a value between 1200 to 43200 seconds (20 minutes to 12 hours, with the longer time periods used for very slow Internet connections), and if you are using DNS NOTIFY the refresh value is not as important (RIPE recommend 86400 seconds if using DNS NOTIFY). This value determines how often secondary/slave nameservers check with the master for updates. A value that is too high will cause DNS changes to be in limbo for a long time.


WARNSOA EXPIRE valueWARNING: Your SOA EXPIRE time is : 3600000 seconds. This seems a bit high. You should consider decreasing this value to about 1209600 to 2419200 seconds (2 to 4 weeks). RFC1912 suggests 2-4 weeks. This is how long a secondary/slave nameserver will wait before considering its DNS data stale if it can't reach the primary nameserver.


FAILReverse DNS entries for MX recordsERROR: The IP of one or more of your mail server(s) have no reverse DNS (PTR) entries/* (if you see "Timeout" below, it may mean that your DNS servers did not respond fast enough)*/. RFC1912 2.1 says you should have a reverse DNS for all your mail servers. It is strongly urged that you have them, as many mailservers will not accept mail from mailservers with no reverse DNS entry. You can double-check using the 'Reverse DNS Lookup' tool at the DNSstuff site if you recently changed your reverse DNS entry (it contacts your servers in real time; the reverse DNS lookups in the DNS report use our local caching DNS server). The problem MX records are: [No reverse DNS entry (rcode: 3 ancount: 0) (check it)]


WARNMail server host name in greetingWARNING: One or more of your mailservers is claiming to be a host other than what it really is (the SMTP greeting should be a 3-digit code, followed by a space or a dash, then the host name). If your mailserver sends out E-mail using this domain in its EHLO or HELO, your E-mail might get blocked by anti-spam software. This is also a technical violation of RFC821 4.3 (and RFC2821 4.3.1). Note that the hostname given in the SMTP greeting should have an A record pointing back to the same server. Note that this one test may use a cached DNS record. claims to be host [but that host is at (may be cached), not].

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Sendmail Error

Jun 28, 2007

I am on CentOS 4.4 64 bit, installed sendmail using

yum install sendmail

everything was installed.

when I

service sendmail start

I got:

Starting sendmail: 554 5.3.5 /etc/mail/ line 265: service "smtp" unknown [FAILED]

Starting sm-client: [ OK ]

what does that mean? how to fix it?

I just want to allow local php script sending email only. no pop3 and smtp service required.

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Exim Vs Sendmail

Feb 26, 2007

What are the main diffrenced between sendmail and exim? If you can explain,

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Sendmail + Vm-pop3d

Aug 1, 2007

Has anyone successfully configured sendmail to work with vm-pop3d under FReeBSD?

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Server Can't Sendmail

Feb 6, 2007

My server (cPanel) can't sendmail (php code), I haven't received any email from cpanel also (create, suspend, terminate .... accounts).

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SendMail Access

May 16, 2007

Just wondering how could we access mailboxes from SendMail is there any free utility available for it?

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Sendmail Encoding

Mar 6, 2007

My OS is FreeBSD 6.2 and I use Sendmail as software to send the e-mail. When I sent a french letter, specials character will display as é. Is there a way to fix it?

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Jun 23, 2007

I see many mails in the queue lists,and from the title I think is spam.

But how I can see from which customer is?

In process,it says as client the Root

What Can I Do?

The Sending mail domain,is not hosting in us - I check it.

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Sendmail To Email Server

Apr 24, 2009

I currently have sendmail(mini_sendmail in chroot) running, and wanted to know how can I send the mail from php scripts to my e-mail server running exim/dovecot?

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How To Disable Sendmail Completely

Jul 2, 2009

Is there any way to have sendmail completely disabled on my server?

I tried:

service sendmail stop

but my maillog keeps filling up with a lot of messages like these:

stat=Deferred: Connection refused by []

How can I stop the maillog from filling up?

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Postfix Or Sendmail Or Exim As MTA? Which Is Best?

Jul 9, 2008

i am confused about setting up mail server.

1.Postfix or sendmail or exim as MTA? which is best?

2. which SMTP/POP3 is best? dovecot or courier or any other

3. or which MTA/POP3 combination is easy and works best?

i am looking for easy installation so that i can use webmail and outlook for emails.
what do you suggest? and of course not commercial ones.

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Sendmail :: Sorry, Your Helo Has Been Denied

Jan 8, 2008

I am on a VPS and set everything up myself. When I try and email a friend, I get it bounced back with the following message (with his email filtered):

<<< 550-5.7.1 {mx078} Sorry, your helo has been denied. <<< 550 5.7.1 [url] 550 5.1.1 <**********>... User unknown

I'm pretty sure the user isn't unknown, I have checked and it is his email address. Can anyone tell me what is wrong, and if the problem is on my end or his, and if my end how I might go about fixing it?

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