Showing posts with the label mailing lists

ARC: What is it and why should you care?

ARC ( Authenticated Received Chain ) is an email authentication mechanism, sort of. The point of ARC is to encapsulate a check of email authentication results and include it in forwarded mail. If I receive email at an address, then I forward mail to another address, authenticat…

Ask Al: Group mail is being blocked, what do I do?

Recently, a reader wrote in with the following question: I host an email group of about 450 people who share a common autoimmune medical condition. I send/receive email through a Gmail account set up in Windows Live Mail on a home PC. My ISP is RCN.  Recently, any emails sent…

DMARC Support in Mailman

Mailman is a very popular open source mailing list management software package. It's been around for a long time -- since the late 1990s, according to Wikipedia . Sites using Mailman to manage discussion lists were negatively impacted by the roll-out of DMARC, specifically …

DMARC and Mailing Lists: A Roundup

In 2014, Yahoo and AOL both implemented strict "p=reject" DMARC policies on their primary domains. This presented challenges to both AOL/Yahoo users and various service providers. Yahoo implemented this new DMARC policy in February. AOL implemented the sample policy …