{"id":107,"date":"2009-08-09T00:43:06","date_gmt":"2009-08-09T06:43:06","guid":{"rendered":"http:\/\/blog.supportpro.com\/?p=107"},"modified":"2018-10-04T23:53:12","modified_gmt":"2018-10-05T05:53:12","slug":"qmail-a-brief-introduction","status":"publish","type":"post","link":"https:\/\/www.supportpro.com\/blog\/qmail-a-brief-introduction\/","title":{"rendered":"Qmail .. A brief introduction .."},"content":{"rendered":"

QMAIL<\/strong><\/p>\n

Qmail is an MTA similar to Exim<\/p>\n

INSTALLATION<\/strong><\/p>\n

Installation involves the following steps:<\/p>\n

1.Installing Qmail itself<\/p>\n

2.Installing EZmlm and EZmlm-idx<\/p>\n

3.Installing Autoresponder<\/p>\n

4.Installing Vpopmail<\/p>\n

5.Installing maildrop<\/p>\n

6.Uninstalling Sendmail<\/p>\n

7.Starting up qmail<\/p>\n

<\/p>\n

You may download these from http:\/\/www.qmailrocks.org\/downloads\/<\/p>\n

mkdir \/usr\/local\/src\/qmail<\/p>\n

Download all the zip folders to the folder qmail<\/p>\n

cd \/usr\/src\/qmail\/qmail-1.03<\/p>\n

make man && make setup check<\/p>\n

.\/config-fast your_fqdn_hostname<\/p>\n

(eg: .\/config-fast mail.mydomain.com)<\/p>\n

<\/p>\n

Ezmlm <\/strong><\/p>\n

EZmlm is a nice mailing list add-on to Qmail<\/p>\n

cd \/usr\/src\/qmail\/<\/p>\n

tar zxvf ezmlm-0.53-idx-0.41.tar.gz<\/p>\n

tar zxvf ezmlm-0.53-idx-0.41.tar.gz<\/p>\n

make && make setup<\/p>\n

Autoresponder<\/strong><\/p>\n

cd \/usr\/src\/qmail\/<\/p>\n

tar zxvf autorespond-2.0.5.tar.gz<\/p>\n

cd autorespond-2.0.5<\/p>\n

make && make install<\/p>\n

Vpopmail<\/strong><\/p>\n

Vpopmail is a set of programs for creating and managing multiple virtual domains on a qmail server, with full support for many POP\/IMAP servers. A web interface to vpopmail is called Vqadmin<\/p>\n

Create a vpopmail user and a vchkpw group<\/p>\n

Set up the vpopmail mysql connection config file under the vpopmail users home directory.<\/p>\n

echo localhost|0|vpopmailuser|password|vpopmail > ~vpopmail\/etc\/vpopmail.mysql<\/p>\n

chown vpopmail:vchkpw ~vpopmail\/etc\/vpopmail.mysql<\/p>\n

chmod 640 ~vpopmail\/etc\/vpopmail.mysql<\/p>\n

Creating the Database User<\/strong><\/p>\n

Log into your MySQL server as root and type the following commands to create the database for vpopmail.<\/p>\n

mysql> CREATE DATBASE vpopmail;<\/p>\n

mysql> GRANT ALL ON vpopmail.* TO vpopmail@localhost IDENTIFIED BY yourpassword;<\/p>\n

mysql> flush privileges;<\/p>\n

cd \/usr\/src\/qmail\/<\/p>\n

tar zxvf vpopmail-5.4.13.tar.gz<\/p>\n

cd vpopmail-5.4.13<\/p>\n

.\/configure enable-logging=p enable-auth-module=mysql disable-passwd enable-clear-passwd disable-many-domains enable-auth-logging enable-sql-logging enable-valias disable-mysql-limits<\/p>\n

make && make install-strip<\/p>\n

Maildrop<\/strong><\/p>\n

Maildrop is a mail filtering agent which can be used to filter messages as they arrive on the server.<\/p>\n

cd \/usr\/src\/qmail\/<\/p>\n

tar zxvf maildrop-1.6.3.tar.gz<\/p>\n

cd maildrop-1.6.3<\/p>\n

.\/configure prefix=\/usr\/local exec-prefix=\/usr\/local enable-maildrop-uid=root enable-maildrop-gid=vchkpw enable-maildirquota<\/p>\n

make && make install-strip && make install-man<\/p>\n

Removing Sendmail<\/strong><\/p>\n

rpm -qa | grep sendmail<\/p>\n

If Sendmail is installed as an RPM, you will see an output similar to this:<\/p>\n

sendmail-x.x.x.x<\/p>\n

sendmail-doc-x.x.x.x<\/p>\n

sendmail-devel-x.x.x.x<\/p>\n

sendmail-cf-x.x.x.x<\/p>\n

If its installed as an RPM, you can uninstall Sendmail quite easily by running the following commands:<\/p>\n

\/etc\/rc.d\/init.d\/sendmail stop (to stop Sendmail)<\/p>\n

rpm -e nodeps sendmail-x.x.x.x<\/p>\n

rpm -e nodeps sendmail-doc-x.x.x.x<\/p>\n

rpm -e nodeps sendmail-devel-x.x.x.x<\/p>\n

rpm -e nodeps sendmail-cf-x.x.x.x<\/p>\n

If the RPM query produces no output, you most likely have a source install of Sendmail.<\/p>\n

\/etc\/rc.d\/init.d\/sendmail stop (to stop Sendmail)<\/p>\n

mv \/usr\/lib\/sendmail \/usr\/lib\/sendmail.old<\/p>\n

mv \/usr\/sbin\/sendmail \/usr\/sbin\/sendmail.old<\/p>\n

chmod 0 \/usr\/lib\/sendmail.old \/usr\/sbin\/sendmail.old<\/p>\n

Establishing an artificial Sendmail path<\/p>\n

ln -s \/var\/qmail\/bin\/sendmail \/usr\/lib\/sendmail<\/p>\n

ln -s \/var\/qmail\/bin\/sendmail \/usr\/sbin\/sendmail<\/p>\n

Starting qmail<\/strong><\/p>\n

qmailctl stop<\/p>\n

qmailctl start<\/p>\n

You can find out how things are running by: qmailctl stat<\/p>\n

You should see an output like this:<\/p>\n

\/service\/qmail-send: up (pid 29956) 2 seconds<\/p>\n

\/service\/qmail-send\/log: up (pid 29960) 2 seconds<\/p>\n

\/service\/qmail-smtpd: up (pid 29963) 2 seconds<\/p>\n

\/service\/qmail-smtpd\/log: up (pid 29968) 2 seconds<\/p>\n

\/service\/qmail-pop3d: up (pid 29971) 2 seconds<\/p>\n

\/service\/qmail-pop3d\/log: up (pid 29972) 2 seconds<\/p>\n

messages in queue: 0<\/p>\n

messages in queue but not yet preprocessed: 0<\/p>\n

Location of qmail logs <\/strong><\/p>\n

\/var\/log\/qmail\/qmail-smtpd\/<\/p>\n

\/var\/log\/qmail\/qmail-send\/<\/p>\n

\/var\/log\/qmail\/qmail-pop3d\/<\/p>\n

How can I decipher qmail logs?<\/strong><\/p>\n

1. Search the logs for info msg N: bytes M from SENDER entries.<\/p>\n

2. Note the message ID, N.<\/p>\n

3. Search forward for starting delivery K: msg N to remote\/local RECIPIENT entries.<\/p>\n

4. For each one you find before the first end msg N entry, youve discovered a recipient.<\/p>\n

Article Authored by Junitha Mayana<\/strong><\/p>\n

Author, Junitha Mayana, is a Systems Engineer with SupportPRO. Junitha specializes in Level 2 and Level 3 Linux \/ Windows Administration. SupportPRO offers 24X7 technical support services to Web hosting companies and service providers.<\/strong><\/p>\n

If you require help, contact SupportPRO Server Admin<\/a><\/p>\n

\"Server<\/a><\/span>