Minor incident

CM.com: Email Campaigns - Increased soft bounces to Microsoft and iCloud recipients

Oct 2, 2026, 12:57 UTC

started

14:01 UTC

resolved

1 h 04 min

duration

Affected: Email Campaigns

Current status of CM.com: Operational — live CM.com status

Timeline

Oct 2, 2026, 12:57 UTC
investigating
We are investigating an issue where part of the email campaign traffic to Microsoft-hosted mailboxes (Outlook, Hotmail, Live, Microsoft 365) and iCloud mailboxes is being rejected, resulting in an increased number of bounces. Delivery to other email providers is not affected.
Oct 2, 2026, 14:01 UTC
resolved
We have made changes to our sending infrastructure and bounce rates have returned to normal levels. We apologize for the inconvenience.

Updates as published by CM.com (original).

This was part of a wider event: 14 services reported incidents within the hour.

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Barracuda Networks 13:35 UTC · Barracuda XDR - Service Disruption on o365 event ingestion
Cytracom 13:27 UTC · ControlOne partial service degradation in the [US-SouthEast ATL] Region
Ideogram 13:14 UTC · Outage on all models
Moneris 13:14 UTC · Batch upload via SFTP - Important Update
Bling 13:14 UTC · Dificuldade no acesso da Home Banking
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Brainly 13:07 UTC · [brainly.com] Elevated number of errors and degraded performance
KingHost 13:05 UTC · VPS - Instabilidade no Acesso
Mews 12:48 UTC · Downgraded Performance - Connector API - kiosks, printers, integrations are affected
Datadog US1 12:46 UTC · Delayed RUM sessions
Ledger 12:44 UTC · Icon (ICX) Mainnet Service Disruption