Receiving Microsoft error: "ErrorExceededMessageLimit"

Stuck with "ErrorExceededMessageLimit"? Here's Why & How to Fix It!

Have you ever attempted to send an email from your Microsoft account through an API, only to encounter an ErrorExceededMessageLimit? This error, frequently associated with a 429 HTTP status code ("Too Many Requests"), indicates that your account has surpassed its daily message or recipient sending limit within 24 hours.

What causes this issue? Microsoft, similar to other service providers, implements these limits to mitigate spam and uphold the integrity of its services. Newly created accounts generally begin with lower limits that progressively increase over time as your sending reputation improves.

Quick Fixes for "ErrorExceededMessageLimit":

1. Check Your Inbox: Look for a verification email from Microsoft. Following their instructions can often resolve the issue immediately.

2. Review Sending Volume: Assess how many emails you've sent in the last 24 hours. If you're unsure of your specific Microsoft account's limits, contact your email administrator.

3. Consult API Documentation: If you're using a third-party API, check their "429 - Microsoft" errors section for specific troubleshooting tips.

4. Wait it out: Especially for newer accounts, patience can be key. The 24-hour limit will reset, and consistent, legitimate sending will help increase your limits over time.

Updated July 14, 2025 15:10