Monitoring - Microsoft has disabled Basic (Non-OAuth) authentication for Exchange Online mailboxes using Free or Family licenses - also known as Personal Accounts. These include free email addresses using the domains outlook.com, hotmail.com, live.com, msn.com, and others.
Microsoft only allows these mailboxes to use Exchange Web Services and Exchange ActiveSync using Basic authentication, so these mailboxes are no longer able to utilize those services. Our API v2 uses both of those services to communicate with all Microsoft mailboxes.
Microsoft has provided no work-around for continuing to use those services, so these mailboxes can no longer use our API v2 and must start using our API v3. We use Microsoft Graph API for our API v3 and that is not affected.
This does NOT affect paid mailboxes using Microsoft's Business or School licenses. This also does NOT affect on-premise Exchange mailboxes. Only free mailboxes using Microsoft's Free or Family licenses are affected.
Oct 01, 2024 - 13:09 PDT
Microsoft only allows these mailboxes to use Exchange Web Services and Exchange ActiveSync using Basic authentication, so these mailboxes are no longer able to utilize those services. Our API v2 uses both of those services to communicate with all Microsoft mailboxes.
Microsoft has provided no work-around for continuing to use those services, so these mailboxes can no longer use our API v2 and must start using our API v3. We use Microsoft Graph API for our API v3 and that is not affected.
This does NOT affect paid mailboxes using Microsoft's Business or School licenses. This also does NOT affect on-premise Exchange mailboxes. Only free mailboxes using Microsoft's Free or Family licenses are affected.
Oct 01, 2024 - 13:09 PDT
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Maintenance
Scheduled Maintenance
EU [API v2] - Rolling Database Optimizations Jul 11, 2025 17:00 - Jul 13, 2025 21:00 PDT
We will be conducting a rolling database optimization impacting V2-related components in the EU region. This scheduled maintenance is expected to have very low impact, but users may experience intermittent 50X errors and occasional delays in webhook processing at certain times during the maintenance window.
Start Time:
2025-07-12 00:00 UTC
End Time:
2025-07-14 04:00 UTC
We will be closely monitoring our systems throughout the maintenance period.
If you have any questions or concerns, please contact our support team at support@nylas.com.
Thank you for your understanding.
Posted on Jul 02, 2025 - 16:30 PDT
Start Time:
2025-07-12 00:00 UTC
End Time:
2025-07-14 04:00 UTC
We will be closely monitoring our systems throughout the maintenance period.
If you have any questions or concerns, please contact our support team at support@nylas.com.
Thank you for your understanding.
Posted on Jul 02, 2025 - 16:30 PDT