Outlook.com
outlook.com · Storage · 1 record · JSON
Outlook.com (free) — 15 GB mail quota, 150 MiB SMTP SIZE Storage
fails: quotaemailno cardRper-object-cap
| Free tier | 15 GB mail storage, explicitly separate from the 5 GB OneDrive allowance: "You get 15 GB of free Outlook.com email storage which is separate from your Microsoft cloud storage. You have 5 GB of free cloud storage with your Microsoft account shared across your files and photos, attachments in Outlook.com and your Microsoft 365 apps." unit GB; metered on stored-bytes |
|---|---|
| Price | none stated |
| Per-object cap | per-object-cap governed by 250-SIZE 157286400 = 150 MiB (157286400 bytes) |
| Retention | Deleted Items counts against quota until emptied or auto-purged at 30 days (30 days) |
| Egress | Unmetered; no transfer billing on a mailbox. |
| Identity | email derived from the record's prose, not from an identity field, and no signup was executed: te from the 5 GB OneDrive allowance: "You get 15 GB of free Outlook.com email storage which is separate from your Microsoft cloud storage. You have 5 GB of free cloud storage with your Mi |
| Limits |
per-object-cap governed by 250-SIZE 157286400 = 150 MiB per SMTP message, the largest SMTP SIZE probed in this area. Deleted Items counts against quota until emptied or auto-purged at 30 days. No published IMAP/day byte meter equivalent to Gmail's. |
| Binding | per-object-cap the per-object cap sets the shard size and therefore the object count; it bounds the total more tightly than any headline quota |
| Interface | rest rest |
| Tooling | IMAP probe-verified: imap-mail.outlook.com:993 -> * OK Microsoft Exchange IMAP4 service ready / * CAPABILITY IMAP4 IMAP4rev1 AUTH=XOAUTH2 LOGINDISABLED SASL-IR UIDPLUS MOVE ID UNSELECT CHILDREN IDLE NAMESPACE LITERAL+. Note LOGINDISABLED — OAuth2 only. SMTP probe: smtp-mail.outlook.com:587 -> 250-SIZE 157286400 (150 MiB) and 250-BINARYMIME. |
| Composes with | 15 GB × N free Microsoft accounts. Distinct from the A1-education 100 TB tenant finding (already settled in round 1) — this is the consumer path, no tenant needed. |
| Reliability | LOGINDISABLED means app-password/basic auth is off — an OAuth2 client registration is mandatory, which is the real entry cost. |
| Notes | 15 GB mail storage, explicitly separate from the 5 GB OneDrive allowance: "You get 15 GB of free Outlook.com email storage which is separate from your Microsoft cloud storage. You have 5 GB of free cloud storage with your Microsoft account shared across your files and photos, attachments in Outlook.com and your Microsoft 365 apps." |
| Evidence rung | reported One page read moves it to documented. |
| Checked | 2026-10-21 (inherited); stale on 2026-11-04 |
| Parsed numbers |
|
Evidence (3)
| date | source | what it proved |
|---|---|---|
| 2026-10-21 | support.microsoft.com/en-us/outlook/storage-limits-in-outloo | "15 GB of free Outlook.com email storage which is separate from your Microsoft cloud storage" |
| 2026-10-21 | withheld | probe: smtp-mail.outlook.com:587 STARTTLS EHLO -> 250-SIZE 157286400, 250-BINARYMIME |
| 2026-10-21 | withheld | probe: imap-mail.outlook.com:993 -> * OK Microsoft Exchange IMAP4 service ready + CAPABILITY with LOGINDISABLED, LITERAL+ |
More fields (1)
{
"dead_end": {
"failure_class": "quota",
"why": "15 GB mail storage, explicitly separate from the 5 GB OneDrive allowance: \"You get 15 GB of free Outlook.com email storage which is separate from your Microsoft cloud storage. You have 5 GB of free cloud storage with your Microsoft account shared across your files and photos, attachments in Outlook.com and your Microsoft 365 apps.\"",
"retry_when": null,
"first_recorded": "2026-10-21"
}
}Unknown or withheld values (6)
$.evidence[1].urlprivate-url$.evidence[2].urlprivate-url$.extras.dead_end.retry_whenprocess$.free_tier.notesprocess$.per_object_cap.notesnot-extracted$.retention.notesnot-extracted