Heavy Networking 602: All About SPF, DKIM, DMARC Email Security

In a world of spam and phishing, running your own email server is fraught with peril. It can be hard to get your messages delivered if your server or domain has a bad reputation. You’re not one of those bad mail servers, but no one believes your mail server is trustworthy without a bunch of metadata proving it. Some of that metadata includes DNS records & SMTP headers that lend authenticity to your messages. If you’re thinking that an MX record was the only place where DNS and email overlapped, you’re way behind the times. These days, we’ve also got SPF, DKIM, and DMARC records that help mail servers decide whether messages claiming to be from your domain are legit. Today on Heavy Networking, all about SPF, DMARC, and DKIM. Our guest is Alex Blackie. He wrote an article on Email Authenticity 101 that I thought explained these topics really well. Sponsor: Dell Technologies Dell Technologies is helping enterprise customers to pave the way for transforming their networks with innovative open networking offerings and global support and services.  A key component of this journey are commercial versions of open source SONiC both within the data center and further. Learn how open source SONiC can play multiple roles in your enterprise network infrastructure with Dell Technologies. https://www.delltechnologies.com/networking Even More Links For You To Click Upon To Connect With The Guest, Gain More Knowledge And Become A Dense Star Of IT Wisdom Shining Brightly Upon All So Blessed To Come Across Your Golden Path Alex’s post we reference in the episode – Email Authenticity 101: DKIM, DMARC, and SPF Alex’s Blog – https://alexblackie.com A Thing Alex Made: Zaiko Inventory Management – https://zaikoapp.com Alex on LinkedIn – https://www.linkedin.com/in/alexblackie/