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 understand that for most users, the Envelope-from address is the most difficult part of an email to spoof because (I assume) it is checked by the receiving MTA i.e. if you attempt to spoof the "MAIL FROM" address the first MTA … Continue reading Does SPF protect against spammers who control the initial MTA?
We recently received an email from a self described "white hat hacker" purporting to be from our own organization.
According to the mail headers, spf, dmarc, dkim and arc all passed okay and gmail didn’t flag it in anyway.
We use… Continue reading SPF/DMARC for shared email provider (gmail) – how did this email pass SPF?
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?
I wonder if the lack of an SPF DNS record is a factor in the decision to mark a message as spam.
I understand that an SPF fail is definitively such a factor, i.e. when SPF is configured, but a message has "MAIL FROM" / "Retu… Continue reading If I leave SPF not set on my domain, is that a factor for email servers to mark emails from this domain as spam?
I am bug hunter & still new in bug bounty programs.
I’ve reached to this topic which I can’t go further before understanding this one .
I used one of the most SPF record finder online , the result of this test was they already have a S… Continue reading SPF record does not preventing the sender spoofing
Interest in DMARC is growing exponentially, but most of the organizations that deploy DMARC don’t actually achieve its full anti-spoofing benefits. Here’s how to overcome the most common DMARC deployment challenges. In our conversations wit… Continue reading 7 common mistakes people make with DMARC