BLOG

DMARC makes it a year

Yesterday DMARC.org announced that in a year DMARC protects over 60 million mailboxes worldwide.

DMARC, which stands for Domain-based Message Authentication, Reporting & Conformance, builds on previous email authentication advancements, SPF and DKIM, with strong protection of the author’s address (From field) and creating a feedback loop from receivers back to legitimate email senders. This makes impersonation of the author’s address difficult for phishers who are trying to send fraudulent email. Brands can use DMARC to easily notify email providers how to recognize and manage fraudulent mail, while also providing a means by which the receiver can report on fraudulent messages to the owner of the spoofed domain. Messages that pass DMARC validation will continue to be evaluated by the mailbox provider to determine ultimate placement of the message according to its spam-detection filters.

 DMARC is a framework that allows senders to specify authorized sources of mail and tell recipient ISPs what to do with mail if the authentication fails. It also creates a feedback mechanism so receivers can tell senders when authentication fails.

Comment:

Your email address will not be published. Required fields are marked *

  • AOL compromise

    Lots of reports today of a security problem at AOL where accounts are sending spam, or are being spoofed in spam runs or something. Details are hazy, but there seems to be quite a bit of noise surrounding this incident. AOL hasn't provided any information as of yet as to what is going on.4 Comments


  • ReturnPath on DMARC+Yahoo

    Over at ReturnPath Christine has an excellent non-technical summary of the DMARC+Yahoo situation, along with some solid recommendations for what actions you might take to avoid the operational problems it can cause.No Comments


  • AOL problems

    Lots of people are reporting ongoing (RTR:GE) messages from AOL today.  This indicates the AOL mail servers are having problems and can't accept mail. This has nothing to do with spam, filtering or malicious email. This is simply their servers aren't functioning as well as they should be and so AOL can't accept all the mail thrown at them. These types of blocks resolve themselves. 1 Comment


Archives