Error: The addin SendGuard365 has prevented the item from being sent!

You get the following error when trying to send an email.
The addin SendGuard365 has prevented the item from being sent

Explanation

This error may occur if there was a drop in internet connectivity during the New Outlook session. This normally results in all addins getting disabled.

Solution

Please restart your Outlook. This should solve the problem as long as you now are connected to the internet.

Article ID: 373, Created: 8/20/2025 at 9:12 PM, Modified: 8/20/2025 at 9:12 PM

Error: The addin SendGuard365 has prevented the item from being sent!

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