Collaborate Disseminate
An SPF record has several tags of which one can be the include tag, and the SPF record ends with a quantifier like +, ?, ~ or -.
When an include tag is used, the included SPF record has it’s own SPF quantifier. Let’s call t… Continue reading Which SPF quantifier applies when an SPF include is used?
Does a SPF record apply only on the domain it’s setup for or also for all it’s subdomains?
For example an SPF record that is configured for the domain example.com will set the policy for mails ending with @example.com.
So if that is the… Continue reading Do SPF records apply to all subdomains?
I received an email to techsupport@websitename.com (pretty generic email) saying that there was a security flaw in my website etc. etc
My initial reaction was that this was a scam. (How/why did they find our site.)
However… Continue reading Email received regarding Security flaw in website
I received an email to techsupport@websitename.com (pretty generic email) saying that there was a security flaw in my website etc. etc
My initial reaction was that this was a scam. (How/why did they find our site.)
However… Continue reading Email received regarding Security flaw in website
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
I know an email was sent using the online service emkei.cz. Is there a way to find out who used that service to send the specific email I received?
I know an email was sent using the online service emkei.cz. Is there a way to find out who used that service to send the specific email I received?
A client recently received an email that was spoofed in a way that I’d never seen before. The following are the anonymised, relevant details from the email’s headers:
authentication-results: spf=none (sender IP is 74.208.4…. Continue reading How to set header.from?
A client recently received an email that was spoofed in a way that I’d never seen before. The following are the anonymised, relevant details from the email’s headers:
authentication-results: spf=none (sender IP is 74.208.4.197) smtp.mail… Continue reading How to set header.from?
In recent months, security researchers have identified Punycode attacks as part of malvertising and phishing campaigns targeting both individual users and major email providers.
The post Beware of the Latest Punycode Attacks appeared first on Security Intelligence.