Collaborate Disseminate
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?
For quite some time, I was wondering if there are ways I could record forms of communication with, say, Facebook servers and have a plausible proof that a specific event (such as receiving a private message with given content… Continue reading Could DKIM be used as a proof that an e-mail was sent by a given party?
DMARC isn’t widely adopted despite the protections it offers for email – so what are the problems with it? Continue reading DMARC should be catnip for email security – why aren’t firms using it?
I wondered if there is a way to verify the correctness/validity of DKIM implementations without actually triggering an email event or sending an email to an external validator. So, remotely, on any domain.
I was thinking abo… Continue reading Is there a passive way to verify DKIM implementations (on DNS level) without triggering an actual email event?
I wondered if there is a way to verify the correctness/validity of DKIM implementations without actually triggering an email event or sending an email to an external validator. So, remotely, on any domain.
I was thinking abo… Continue reading Is there a passive way to verify DKIM implementations (on DNS level) without triggering an actual email event?
Why we need trusted third party to sign our public key to be trusted? we can publish it via DNS and it will be trusted. Isn’t like that work DKIM? Why we don’t do same thing for HTTPS?
When I first started playing around with how SMTP worked over 20 years ago, I remember being somewhat surprised how easy it was to make an email appear in someone else’s mailbox that looked like it came from anyone at all.
T… Continue reading Why is still so easy to send phishing emails?
I recently registered a domain name, and set up an email account tied to it with Zoho mail. I’m concerned about making sure all emails from this domain are signed to prevent spoofing.
I’ve enabled SPF and DKIM on Zoho and my… Continue reading How can I prevent email spoofing from my domain?
I recently contacted a vendor of security-related development libraries to ask for a quote (I won’t name them yet).
The next day, Postmark sent me my weekly DMARC report – and it contained 2 failed entries originating from t… Continue reading Suspicious Entry in DMARC Report