How do I fix the 550 5.7.13 bounce error?

If this is a colleague, you'll need to talk to your IT department to see why the account is disabled If the person has left the company, see if there is a general "info@" or team address you can use instead Remove this address from your mailing list, as it won't be able to receive mail until it's re-enabled

550 5.7.13: User Account Disabled

The 550 5.7.13 SMTP error from Microsoft 365 means the recipient's account has been disabled. Learn what causes this and what to do.

Published April 23, 2026 · Last verified May 31, 2026 · Maintained by TamingDNS

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Permanent Failure (Hard Bounce)

SMTP Code
550

Enhanced Code
5.7.13

Category
User Account Disabled

Frequency
Very Common

🔢 Enhanced Status Code Breakdown: `5.7.13`

Component	Value	Meaning
Class	5	Permanent failure (Hard bounce)
Subject	7	Security or policy
Detail	13	User Account Disabled

Per RFC 3463 Enhanced Mail System Status Codes. Class (X) = severity, Subject (Y) = category, Detail (Z) = specific condition.

💬 What This Error Means

The recipient's account has been disabled and can't receive any mail right now. This is a specific error from Microsoft 365 that means the user's account has been suspended, blocked, or deactivated by their company's IT team.

Common Causes

The person's account was manually disabled by their IT administrator
The account was automatically suspended due to "suspicious activity"
The user has left the company and their license was removed
The mailbox is in the middle of being moved or changed to a shared account

How to Fix This

If this is a colleague, you'll need to talk to your IT department to see why the account is disabled
If the person has left the company, see if there is a general "info@" or team address you can use instead
Remove this address from your mailing list, as it won't be able to receive mail until it's re-enabled

📚 Official Documentation

Microsoft 365 / Outlook

This is a Microsoft 365-specific code. The user's account is blocked or disabled in Azure AD. Only the receiving organisation's IT admin can resolve this.

📖 Microsoft 365 / Outlook documentation → Browse all Microsoft 365 / Outlook error codes →

↗ Microsoft 365 NDR 5.7.13

📋 Real-World Example Messages

These are real bounce message formats you might receive. Paste yours into the Bounce Decoder for instant analysis.

550 5.7.13 STOREDRV.Deliver.Exception:AccountDisabledException.MapiExceptionADUserDisabledAndHidden
550 5.7.133 The user account is blocked

🔗 Related Error Codes

                    550 5.2.1                

Mailbox Disabled

                    550 5.7.14                

Trust Relationship Required

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