All Questions
5
questions
-2
votes
1
answer
801
views
My OpenDMARC is rejecting emails from firefox.com . Is their SPF record correct? Or am I wrong?
Why is opendmarc rejecting mail from firefox.com? It looks like their SPF record matches their sending address and does pass:
v=spf1 mx a include:amazonses.com include:mail.zendesk.com -all
/var/log/...
- 145
1
vote
1
answer
809
views
Why is opendmarc SPF failing this arriving message?
Why is this incoming message failing?
postfix/smtpd[4776]: connect from mail-mw2nam10on2073.outbound.protection.outlook.com[40.107.94.73]
postfix/smtpd[4776]: Anonymous TLS connection established ...
- 145
3
votes
0
answers
229
views
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 ...
- 280
8
votes
2
answers
3k
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 ...
- 499
1
vote
1
answer
271
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 ...
- 1,491