Can microsoft mail handle 2 smtp server

Yes, Microsoft 365 (formerly Office 365) and Microsoft Exchange Server can handle multiple SMTP servers. Here are a few ways to achieve this:

1. Multiple SMTP Relay Servers: You can configure multiple SMTP relay servers in your Microsoft 365 or Exchange Server organization. This allows you to route email traffic through different servers, depending on the sender, recipient, or other criteria. You can set up multiple relay servers in the Exchange Admin Center (EAC) or PowerShell.
2. Smart Hosts: You can configure smart hosts in your Microsoft 365 or Exchange Server organization. A smart host is an SMTP server that acts as a relay for incoming and outgoing email. You can specify multiple smart hosts, and Exchange will route email traffic through the most suitable one based on the sender, recipient, or other criteria.
3. Transport Rules: You can create transport rules in your Microsoft 365 or Exchange Server organization to route email traffic through specific SMTP servers based on specific conditions, such as sender, recipient, or message content.
4. Hybrid Configuration: If you have a hybrid configuration with on-premises Exchange Server and Microsoft 365, you can configure multiple SMTP servers in your on-premises environment and route email traffic through them using the hybrid configuration.

To set up multiple SMTP servers in Microsoft 365 or Exchange Server, you'll need to:

1. Create a new SMTP server in the EAC or PowerShell.
2. Configure the SMTP server settings, such as the server name, IP address, and authentication settings.
3. Update the Send Connector or Receive Connector to use the new SMTP server.
4. Test the configuration to ensure email traffic is routed correctly.

Keep in mind that you may need to consider factors such as:

• Authentication: Ensure that all SMTP servers use the same authentication mechanism (e.g., username and password, or OAuth).
• Routing: Configure routing rules to ensure email traffic is routed correctly between the different SMTP servers.
• Load balancing: Consider load balancing the SMTP servers to distribute the email traffic evenly and improve performance.
• Security: Ensure that all SMTP servers have the same security settings and are configured to meet your organization's security requirements.

It's recommended to consult the Microsoft documentation and seek guidance from a qualified IT professional if you're unsure about configuring multiple SMTP servers in your Microsoft 365 or Exchange Server organization.