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4 articles
DMARC and Third-Party Bulk Senders: Navigating ARC and Forwarding Chains
Third-party senders can cause DMARC validation issues, learn how to navigate these complexities
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Why email forwarding breaks SPF and DKIM
Email almost never travels in a straight line from sender to recipient. It gets redirected by university and corporate aliases, fanned out by mailing lists, scrubbed by security gateways, and quietly relayed by.
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Mailing lists, DMARC and ARC
Mailing lists are one of the few places where correct, well-behaved email authentication still breaks for reasons that are nobody's fault.
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Aliases, .forward files and DMARC
An alias looks like the most innocent thing in email. You point sales@yourcompany.com at three colleagues, you set up info@ to land in a shared mailbox, a member of staff configures their university address to drop.
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