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New email standards: what you need to know
Implement DKIM: Utilize DomainKeys Identified Mail to demonstrate email ownership. DKIM signs messages in a verifiable way, using cryptographic authentication to distinguish legitimate senders ...
Misconfigurations in Microsoft Exchange open new doors to email spoofing attacks — here’s how it works
If Server A is not listed in the SPF records, lacks a valid DKIM signature ... to restrict incoming emails to trusted sources ...