Questions tagged [opendmarc]

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Using DMARC techniques to block Backscatter

We run a small email (receiving not bulk sending) service (~ 300 domains or so) for our customers and are just starting to introduce DMARC. One of the reasons for doing so is to help stop backscatter ...
4
votes
1answer
121 views

DMARC test failed but we didn't find any obvious reason why; DMARC not passing while SPF and DKIM do

About 7 days ago, I found out on https://www.mail-tester.com that sometimes (50% of my tries over a couple of days) my company email does not pass DMARC test. As it states it does not know why, I am ...
1
vote
1answer
75 views

How to install opendmarc on Debian Wheezy

How can I install opendmarc on Debian Wheezy? I have tried: ~ $ echo 'deb http://ftp.debian.org/debian wheezy-backports main contrib' >> /etc/apt/sources.list ~ $ apt-get update ~ $ apt-get ...