---
title: "Sarbacane Engage: how to synchronise a professional Microsoft 365 address?"
description: "Connecting your Exchange/Outlook email to Sarbacane Engage is an essential process for the efficient sending of your prospecting emails. Discover ho..."
url: https://help.sarbacane.com/en/articles/259-sarbacane-engage-how-to-synchronise-a-professional-microsoft-365-address
updated: 2026-06-17
language: en
alternates: [fr, es]
---

# Sarbacane Engage: how to synchronise a professional Microsoft 365 address?

Connecting your Exchange/Outlook email to Sarbacane Engage is an essential process for the efficient sending of your prospecting emails. Discover ho...

Connecting your Exchange/Outlook mailbox to Sarbacane Engage is an essential process for the effective sending of your prospecting emails. Learn how to do this and how to overcome common authentication issues.

## Mailbox configuration

Follow these steps to connect your professional Microsoft 365 email address to Sarbacane Engage:

-   Go to your account settings, then to the Email tab, and choose Microsoft.
    
-   Select Connect via Outlook (Office 365 pro) if you are using Outlook. Enter your professional email address and sign in.
    
-   Authorize Engage to access your professional Microsoft 365 account**.**
    
-   To connect via Exchange (EWS), complete the required fields and sign in.
    
-   To connect via Exchange (EAS), enter your email address and sign in. The procedure is similar to the professional Microsoft 365 synchronization.
    

## Authentication issues and solutions

Authentication issues may arise when configuring the mailbox. Here is how to resolve common problems:

-   Use of a VPN: If your mail server is behind a VPN or a firewall, this may prevent synchronization. Check your VPN and firewall settings to allow the connection to the mail service.
    
-   Identification error: If, despite correctly entering your credentials and advanced settings, you receive an error, this may be due to two-factor authentication. Generate an application-specific password and contact Datananas support if necessary.
    
-   Temporary mail server error: If a temporary error occurs during synchronization, it is possible that the mail server is temporarily unavailable. Try again later.
    
-   Failure of automatic settings discovery: If the automatic discovery of connection settings fails, request the settings from your mail administrator and enter them in the advanced settings.
    
-   Connection error: If the connection cannot be established with the provided settings, contact your mail administrator to obtain the correct settings and use them in the advanced settings.
    

## Recommended settings for optimal synchronization

For optimal synchronization, ensure that the sharing settings, anti-malware filtering, connection filtering, and ActiveSync access are correctly configured in the Exchange admin center. The recommended settings are as follows:

-   Organization, Sharing section: configure the default sharing policy for the sharing of individual calendars.
    
-   Protection, Anti-malware Filter section: enable sender notifications and configure the response to malware detection to remove all attachments.
    
-   Protection, Connection Filter section: use the default settings.
    
-   Mobile, Mobile Device Access section: check the settings for Exchange ActiveSync Access.
    
-   Mobile, Mobile Device Mailbox Policies section: use the default settings.
    

## Other synchronization methods

If synchronization does not work, consider using IMAP/SMTP synchronization. Configure it with the information specific to your account. You can also retrieve this information from your mailbox.

### IMAP/SMTP connection

If synchronization via Exchange does not work, use the IMAP/SMTP method. Retrieve the information from your mailbox for the following settings:

#### IMAP

Host: imap-mail.Outlook.com

Port: 993

Identifier: Your professional Outlook email address

Password: Your email password

#### SMTP

Host: smtp-mail.Outlook.com

Port: 587

Identifier: Your professional Outlook email address

Password: Your email password

Synchronizing your Microsoft 365 **professional** email with Sarbacane Engage will ensure smooth and efficient prospecting with your recipients.

**Attention** : following Microsoft security updates, personal Outlook accounts can no longer connect via IMAP/SMTP with a simple email and password.