---
title: How do I create a Connector in Microsoft 365?
description: If you are experiencing deliverability issues in Office 365, you may need to set up a Connector in Office 365.
---

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# How do I create a Connector in Microsoft 365?

## If you are experiencing deliverability issues in Office 365, you may need to set up a Connector in Office 365.

> *Note: The following method of safelisting has been deprecated as of 09/01/2021. You will want to implement the new [advanced delivery rules](https://support.phishingbox.com/hc/en-us/articles/4403635079188) for Office 365 clients. If you implement the new rules and still experience bounced emails, follow the steps in this article.*

#### Create a connector

The connector is necessary to get around graylisting which Microsoft has implemented on the Portal simulated phishing emails (for more information on graylisting, see article: [Fix email delivery issues for error code 451 4.7.500-699 (ASxxx) in Exchange Online](https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-451-4-7-500-699-asxxx-in-exchange-online)).

To set up a Connector, navigate to the Office 365 Admin Center.

![office-nav.PNG](https://support.phishingbox.com/hc/article_attachments/360070953614)

Once in the admin center, click **'Show all'** then **'Exchange'**.

![show-all.png](https://support.phishingbox.com/hc/article_attachments/360072109533)             ![exchange-menu.png](https://support.phishingbox.com/hc/article_attachments/360072109613)

Under the **mail flow** section, click 'connectors'.

![mceclip0.png](https://support.phishingbox.com/hc/article_attachments/13411173437716)

After navigating to **connectors**, click the 'Add a connector' button to add an additional connector. This will open the **New Connector** wizard.

In the **'Connection from:'** select menu, select **'Partner Organization'**.

In the **'Connection to:'** select menu, select **'Office 365'.**

![mceclip2.png](https://support.phishingbox.com/hc/article_attachments/13411197663892)

Click **'Next'** to navigate to the next step.

In the **'Name'** text field, enter a descriptive name for the connector, such as 'Portal Connector'. Adding a connector description is optional. Make sure the **'Turn it on'** checkbox is checked.

![mceclip3.png](https://support.phishingbox.com/hc/article_attachments/13411200231060)

Click **'Next'** to proceed to the next step.

Click the **'By verifying that the IP address...'** radio button.

Add all necessary IP addresses. PhishingBox mail server IP addresses below.

#### US - Phishing Mail

- **64.191.166.196**
- **64.191.166.197**

#### US - System Mail

- **69.72.47.194**

#### EU - Phishing Mail

- **64.238.34.10**
- **64.238.34.11**

#### EU - System Mail

- **161.38.205.202**

![mceclip5.png](https://support.phishingbox.com/hc/article_attachments/13411364594068)

Click **'Next'** to proceed to the next step.

Ensure the **'Reject email messages if they aren't sent over TLS'** checkbox is checked, then click **'Next'** to navigate to the last step.

![mceclip6.png](https://support.phishingbox.com/hc/article_attachments/13411397892116)

On the final page, review the connector's settings and click **'Create connector'** to enable the connector.

![mceclip7.png](https://support.phishingbox.com/hc/article_attachments/13411370111252)

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