Provider
CloudflareIncident detail
Cloudflare Access one-time PIN emails blocked by certain email security gateways, including Proofpoint
Active incidentMinor
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Started
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Timeline
Incident updates
Every update Cloudflare posted, oldest to newest, exactly as it appeared on their official status page.
Investigating
Some customers using Proofpoint may experience delayed Cloudflare notifications and login codes. Proofpoint is temporarily deferring messages with an SMTP 421 4.7.0 response. Cloudflare will continue retrying delivery.
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