Microsoft Office: New emails won't trigger Zap

Symptoms

When using Microsoft Outlook's New Email trigger in your Zap, the Zap does not run.  Your Zap is turned on, but there is no corresponding Zap run in your Zap history.

Causes

This happens for a few reasons:

• The sender and receiver of the email are the same.
• The sender and receiver's domains are the same, and the receiver's email address is a shared inbox. The Zap will not trigger for emails sent to a shared inbox with the same domain as the sender's address.
• The New Email trigger can only trigger on up to 50 emails per polling interval.

How to fix it

To fix this:

• Check the sender's email isn't the same as the email as the connected app account (receiver's email) in your Zap. 
• Send emails from an address with a different domain to your connected app account.
• For Zapier paid plans, you can adjust the polling interval between 1 and 15 mins.