> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/user-moved-exchange-sent-messages-to-deleted-items.md).
# User moved Exchange sent messages to deleted items
### Synopsis
| Field | Value |
| -------------------- | ---------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | 10 Minutes |
| Deduplication Period | 1 Day |
| Required Data | Office 365 Audit |
| Detection Modules | Identity Threat Module, SaaS Threat Detection, Email |
| ATT\&CK Tactic | Stealth (TA0005) |
| ATT\&CK Technique | Indicator Removal: Clear Mailbox Data (T1070.008) |
| Severity | Informational |
### Description
A user moved sent messages to deleted items in Exchange.
### Attacker's Goals
An attacker is attempting to hide newly sent email messages for evasion purposes.
### Investigative actions
* Look for signs that the user account and mailboxes are compromised (e.g. abnormal logins, unusual activity).
* Investigate the IP address associated with the activity.
* Follow further actions done by the account.
* Look for unusual email patterns from the affected mailbox (e.g. unusual email contents).
* Examine the user's email activity history for suspicious behavior.
### Variations
Sensitive Exchange sent messages moved to deleted items from unusual source
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------- |
| ATT\&CK Tactic | Stealth (TA0005) |
| ATT\&CK Technique | Indicator Removal: Clear Mailbox Data (T1070.008) |
| Severity | Low |
**Description**
A user moved sensitive sent messages to deleted items in Exchange.
**Attacker's Goals**
An attacker is attempting to hide newly sent email messages for evasion purposes.
**Investigative actions**
* Look for signs that the user account and mailboxes are compromised (e.g. abnormal logins, unusual activity).
* Investigate the IP address associated with the activity.
* Follow further actions done by the account.
* Look for unusual email patterns from the affected mailbox (e.g. unusual email contents).
* Examine the user's email activity history for suspicious behavior.
---
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