Does ARC fix every forwarding issue?
Myth: False. ARC helps with forwarding authentication preservation but does not fix every forwarding issue. Its effectiveness depends on proper implementation by forwarding services and evaluation by receivers.
ARC adoption is growing but not universal. Some forwarders do not implement ARC. Some receivers do not evaluate ARC chains. The ecosystem is improving but incomplete.
ARC provides important mitigation for DMARC's forwarding challenges but is not a complete solution. Monitor DMARC reports to identify forwarding issues that persist despite ARC.
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