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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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 […] I prefer to use corporate mail server for mail relay mails from Linux box. While settingup Nagios for my friend and as he insisted using Gmail to send Nagios alters I found interesting post. Install dependencies. yum -y install openssl-perl If /etc/pki/CA/private/cakey.pem does not exists /etc/pki/tls/misc/CA.pl -newca That will create the cakey.pem file in /etc/pki/CA/private […] Earlier we have covered postfix- relay mails to gmail This tip is for the qmail server using Jms patch. Many of us prefer Qmail instead of Postfix, especially when it come to use as mail server, for the one who wish to relay mails postfix is easy to install. Make sure you have created cert […] How to setup Relay host in mail server POSTED ON SEPTEMBER 12, 2013 // Please refer to the following information to assist in configuring various of the common mail servers: Microsoft Exchange 2003 Important: If you are using Exchange with smtp-proxy.tm.net.my, you must configure your server to reject invalid recipients during the SMTP session, rather […] root@localhost control]# pwd /var/qmail/control [root@localhost control]# cat helohost cat helohost mail.rmohan.com /var/qmail/control/me mail.rmohan.com control file of qmail Presented by demilitarized area December 31, 2003 Last updated: control file, which controls the behavior of qmail resides in / var / qmail / control directory. Unlike such as sendmail, each control, it is not organized in a single file, you can set as a file of each control in […] Email Relay is one of the more annoying features of email servers. However, there are times it can be pretty useful. It’s annoying because Spammers love to exploit it, and it’s useful because it can allow you to centralize a lot of email services. What is Email Relay? Email relay is, quite simple, a feature […] f you have an Exchange 2007 or Exchange 2010 server and you discover that you are an Open Relay, there is a very simple command that you can run from the Exchange Management Shell to close this down. The command is: Get-ReceiveConnector “YourReceiveConnectorName” | Remove-ADPermission -User “NT AUTHORITY\ANONYMOUS LOGON” -ExtendedRights “ms-Exch-SMTP-Accept-Any-Recipient” Replace “YourReceiveConnector” with the […] Qmail is a modern, secure and powerful SMTP email system. We used QmailRocks as a qmail installation resource. I would like to introduce few step for “Block Spam Mails with Qmail“. 1. Qmail block mail from spammers based on the envelope sender Qmail has the ability to unconditionally block mail from spammers based on the […] |
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