BLACKLIST AND WHITELIST FOR ZIMBRA SPAM FILTER

BLACKLIST AND WHITELIST FOR ZIMBRA SPAM FILTER   gin to console as “root” user. Edit the amavisd config file /opt/zimbra/conf/amavisd.conf.in, Add 2 lines: read_hash(\%whitelist_sender, ‘/opt/zimbra/conf/whitelist’); read_hash(\%blacklist_sender, ‘/opt/zimbra/conf/blacklist’); Create the list files: #vi /opt/zimbra/conf/whitelist example.com EOT #vi /opt/zimbra/conf/blacklist spammer@example.com EOT Restart Service: #su – zimbra -c ‘zmamavisdctl restart’

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Login problem on Zimbra web http (cookies)

Si vous avez ce message d’erreur sur Zimbra voilà la marche à suivre : /opt/zimbra/libexec/zmproxyconfig -e -w -o -a 8080:80:8443:443 -x both -H `zmhostname` Si vous avez une erreur à cette commande là, lancer ensuite celle là : zmprov ms `zmhostname` zimbraReverseProxySSLToUpstreamEnabled FALSE Puis relancer la commande précédente et enfin les commandes suivantes : zmtlsctl […]

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catalina.out log rotation

I am interested in catalina.out log file rotation, I have an application where logging to catalina.out is very huge, say 0.5 MB / sec. So I have written one script to handle this which is shown below.   # crontab -l | grep catalina 0,30 * * * * bash /catalina_log_handler.sh  >/dev/null 2>&1   # […]

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ZIMBRA IMPROVEMENT : RESTRICTED SENDER/SENDER MUST LOGIN ON ZIMBRA 8

powerful mail server, Zimbra has some system security features applied by default. We can also applying some additional security policy to increase mail server protection, such as applying PolicyD and Fail2Ban All the above security rule may be sufficient, but there are some additional security tips should be considered, especially in the case of SMTP […]

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Zimbra 8 – Adjust max attachment size for email

his sets the maximum attachment size to 50 megabytes. Log into the shell account and type the following: su zimbra zmprov mcf zimbraMtaMaxMessageSize 50000000 zmprov mcf zimbraFileUploadMaxSize 50000000 zmprov mcf zimbraMailContentMaxSize 104857600 zmprov modifyConfig zimbraMtaMaxMessageSize 5048000 postfix reload Then restart zimbra zmcontrol restart

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Postfix on CentOS 6.4

MAIL SERVERSETUP USING POSTFIX ON CENTOS 6.4 Part 1 MTA Postfix Chapter 1 Email Service Chapter 2 Mail Transfer Agents Chapter 3 Installation and Startup Chapter 4 Postfix Configuration Part 2 IMAP & POP3 Server Chapter 5 IMAP and POP3 on Dovecot Chapter 6 MUA Configuration Part 3 Postfix aliases & access control Chapter 7 […]

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Configure Postfix on CentOS/RHEL 6/5

Postfix is fast and popular SMTP server widely used. The main job of postfix is to relay mail locally or to intended destination outside the network. Some of the most popular SMTP servers are Sendmail, Postfix and Qmail. By default Sendmail comes pre-installed with CentOS/RHEL 5. We will need to remove it and install Postfix. […]

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Backup MX Server with RHEL

This post will explain how to configure a backup MX server for queuing mail for two (or more) domains if the primary mail server of those domains become unreachable. I’ve tested this configuration for relaying mail to Microsoft Exchange, Postfix, QMail, Sendmail, Lotus Domino, Merak and other less common mail server without any kind of […]

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manage Postfix mail queue

This post will show a simple perl tool to manage (delete) one or more message in Postfix mail queue. The main script to use is delete-mailq.pl Create a file called delete-mailq.pl in /usr/local/bin with the the following content : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 […]

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