Microsoft says an Exchange Online issue that mistakenly quarantined legitimate emails last week was triggered by faulty heuristic detection rules designed to block credential phishing campaigns.
Microsoft has confirmed that a faulty anti-phishing detection rule designed to stop credential theft campaigns mistakenly ...
Since 5 February, Microsoft Exchange Online has been silently swallowing legitimate business emails. Most people affected still don't know it. The problem, tracked as service incident EX1227432, began ...
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