SPF

Linux Uptime 13
If you’re looking for the fastest and easiest way to get DMARC verification working on a RedHat (Fedora, RHEL or CentOS) mail server, I highly recommend OpenDMARC. I’m a bit biased, as I currently maintain the OpenDMARC package in the Fedora and EPEL repositories. This article will help you install the […]

Installing OpenDMARC RPM via Yum with Postfix or Sendmail (for ...

This entry was posted in Linux Reference Technology and tagged CentOS configure DKIM DMARC EPEL Fedora how to OpenDKIM OpenDMARC Redhat RHEL set up SPF on by (updated 3293 days ago)
2
It all started about a week ago. I got an alert email from a server, complaining about a RAID array. That’s nothing terribly out of the ordinary, as I have all of my systems set to alert me if something seems out of place. However, the problem in this case […]

Rant: Google Apps’ Gmail Can’t Protect Me from Misconfigured Mailers

This entry was posted in Linux Rants and Raves Technology and tagged blocked senders Google Apps SPF split domain routing spoof on by (updated 3593 days ago)
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Before proceeding with this tutorial, and at the risk of possibly overstating what is obvious to some, I want to make three things clear:

How to get DKIM and DomainKeys working with Postfix on ...

This entry was posted in Linux Reference Technology and tagged CentOS CentOS 5 CentOS 5.5 CentOS 5.x dk-milter DKIM DomainKeys DomainKeys Identified Mail OpenDKIM opendkim-milter Postfix RHEL RHEL 5 RHEL 5.5 Sender Policy Framework sendmail signed SPF on by (updated 3593 days ago)
Linux Uptime 180
Update! RPMs and Yum now available. I build and maintain the RPM packages of OpenDKIM for RHEL/CentOS and Fedora, which are available with Yum. For a much quicker and easier way to install OpenDKIM, read this. Of course, if you still prefer to go old-skool and compile your own binaries […]

How to get DKIM (DomainKeys Identified Mail) working with Postfix ...

This entry was posted in Linux Reference Technology and tagged 20209 CentOS CentOS 5 CentOS 5.5 DKIM dkim-filter dkim-milter dkim-proxy DomainKeys DomainKeys Identified Mail GoDaddy OpenDKIM opendkim-genkey opendkim-milter opendkim.conf Postfix RHEL RHEL 5 RHEL 5.5 Sender Policy Framework sendmail signed SPF on by (updated 3783 days ago)