Hotmail
mailboxEstablished 1996Microsoft’s consumer mailbox legacy brand (Hotmail), now broadly aligned with Outlook.com infrastructure. Uses Microsoft sender programs (e.g., SNDS/JMRP) for visibility and feedback workflows.
Evolution timeline
Focused on what matters now; history is available on demand.
What matters for senders
Metrics & trends
Published metrics for this provider, plus a trend view built from sourced yearly points (and monthly when available).
Published metrics
Report name on the left, provider value on the right.
No published metrics available for this provider yet.
Trend
Default is yearly. Monthly is available only when the current year has at least 6 monthly data points.
Monthly trends require at least 6 months of data in the current year.
No trend metric detected yet for this provider.
Add numeric report points with a period start or end date to enable trend rendering.
Capabilities
Focused summary with a full reference list.
What you need to know
Authentication—
Sender requirements—
Feedback loop—
Inbox experience—
Resources
Official links first, then supporting references.
Support Request
https://olcsupport.office.com/
Bulk Sender Guidelines
https://techcommunity.microsoft.com/blog/microsoftdefenderforoffice365blog/strengthening-email-ecosystem-outlook%E2%80%99s-new-requirements-for-high%E2%80%90volume-senders/4399730
SNDS
https://sendersupport.olc.protection.outlook.com/snds/
Smart Network Data Services (SNDS)
https://sendersupport.olc.protection.outlook.com/snds/index
JMRP
https://sendersupport.olc.protection.outlook.com/snds/JMRP.aspx
SNDS FAQ
https://sendersupport.olc.protection.outlook.com/snds/faq
Service Health Status
https://portal.office.com/servicestatus
Microsoft sender support
https://sendersupport.olc.protection.outlook.com/
Microsoft 365 Service health
https://status.office.com/
Notes
Brand name persists historically; consumer mailbox is commonly referenced as Outlook/Hotmail ecosystem.