Collaborate Disseminate
If SPF is verifying against a set of IP records if the incoming email from a domain was sent from an authorized host piggybacking on the DNS and DKIM does touch the signature of the email and calculate another one based on DNS public key r… Continue reading Why do I need DMARC on top of SPF and DKIM? [duplicate]
It is common knowledge that any system is as strong as its weakest link. Unsurprisingly, threat actors constantly probe enterprise networks for such
The post Phishers and Spoofers are Getting Smarter! Are You? appeared first on Kratikal Blog.
The post… Continue reading Phishers and Spoofers are Getting Smarter! Are You?
My company uses an Anti-Spoofing Protection based on the SPF Record and has implemented DMARC. Often our users correspond via a "secure" messaging platform like Proofpoint/ZIX/IronPort from their counterparts. However, when our u… Continue reading Whitelisting Email Service for Anti-Spoofing and DMARC
I got sent an email from someone in response to an over 2 year old exchange, and the contents of it look like spam to me.
Checking the headers the following looks normal:
Return-Path
Received & Received-SPF:
Received: from gateway34.we… Continue reading Spoofed email? "X-Source-Sender" and "Received" headers look dodgy
I have been a victim of a fraud where my solicitor’s email address was used to dupe me out of a house purchase deposit. How do I determine where the emails originated from – did the crooks use emails from my inbox (hotmail) that somehow go… Continue reading SPF fail, DKIM pass, where did the emails originate from [closed]
We (let’s call ourselves foo.com) have a Third-party service (let’s call them: bar.com) that sends emails on our behalf, with email from our domain (for example: baz@foo.com). To facilitate a smooth mail flow, we have set up SPF, DKIM and … Continue reading DKIM alignment failure with Third-party service
One of the big stories from the past few days is the return of DNS cache poisoning. The new attack has been dubbed SADDNS, and the full PDF whitepaper is now available. When you lookup a website’s IP address in a poisoned cache, you get the wrong IP address.
This …read more
Continue reading This Week in Security: SAD DNS, Incident Documentation Done Well, and TCL Responds
This blog post from 2016 shockingly implies that gmail will accept an email if either SPF or DKIM passes. We use G suite SMTP servers, therefore SPF provides almost zero protection from spoofing. Is this still the case?
Since DMARC only n… Continue reading Does gmail still ignore DKIM if SPF passes, DMARC style?
As far as I understand, there should be no problems with using CNAME or DNAME records in connection with DKIM. That is, while the DKIM record for verifiying a mail from someone@example.com wants to be retrieved as a TXTRR under some.select… Continue reading DKIM and CNAME or DNAME
I am currently reading on DKIM authentication for email and I would like to manually try to run through it (to facilitate my understanding of DKIM), but I would like to verify if it is possible to do so.
My intended steps to run through t… Continue reading How do I run through the DKIM authentication?