Collaborate Disseminate
As I’m reading DMARC aggregate reports, I’ve come across a few records that have <auth_results><spf><domain> values that don’t match the envelope from, header from, or source IP reverse DNS. My understanding… Continue reading What is the SPF domain value based on in DMARC aggregate reports?
I am working on a tool that checks SPF records, and would like a way to be able to disable email from a testing subdomain, and its children, so that my test domains are not easy targets for spammers to send from.
I was plann… Continue reading How to disable email for a subdomain without using SPF
As the questions title already asks: Are emails sent by Necurs DKIM and/or SPF signed?
Or are they unsigned and simply spoofed?
Continue reading Are emails from the Necurs bot net DKIM and/or SPF signed?
We have websites hosted on AWS, are using SES to send out mailings, and use Google Mail for sending and receiving company mail.
Every so often I receive SPAM emails to my Priority Inbox in Google because they are marked as c… Continue reading SPF and DKIM passes for SPAM message when using SES and Google Mail
Exchange Online Protection now highlights unauthenticated users – or messages that come from people who cannot prove their identity. Instead of a nice picture (or avatar), you see a question mark for the user. Maybe this might make people think twice about the opportunity to send money to someone to liberate funds held in a bank. Just maybe.
The post Exchange Online Protection Highlights Unauthenticated Senders appeared first on Petri.
Continue reading Exchange Online Protection Highlights Unauthenticated Senders
E-mail forwarding can break SPF, but it should not break DKIM. I want to make a DMARC policy that will evaluate to “pass” when either DKIM or SPF passes, and “fail” when neither DKIM or SPF passes. Is this possible? If so,… Continue reading DMARC policy result when exactly one of SPF and DKIM fails and exactly one succeeds
I have SPF and DKIM. I’m planning on adding DMARC to tell receivers to expect SPF and/or DKIM. I’ve read that it’s best to set DMARC up with both SPF and DKIM, but I don’t understand exactly when having it for both would be b… Continue reading Why set up DMARC for SPF if it’s already set up for DKIM?
I have set up my company dmarc. It is in test mode and I regularly receive reports. Some seem weird to me and I would like to understand. For example, I have received a report with SPF and dkim failed, but the result is passe… Continue reading Dmarc: Why do I have dkim=fail, spf=fail and result=pass
I have a dmarc file containing some record. I am bit surprised by the result and I would like to make sure I am reading it correctly.
Here is the record:
<record>
<row>
<source_i>1.2.3.4<… Continue reading How to read dmarc record for a report?
basically, I have setup spk, dkim and dmarc for mail authentication. For this, I used this tuto. All worked correctly and I got this result:
seems like everything OK.
Now to confirm everything is working correctly, I have… Continue reading Why is DKIM configuration testing not working the same for every test site?