Instead, you can use an on-premises email server (Exchange Server or any other SMTP server) to relay mail. For more information about configuring your own Exchange server to send mail to Microsoft …

Jul 28, 2025 · Admins can learn how to use connectors to route mail between Microsoft 365, Office 365, or Exchange Online and on-premises email servers.

Dec 19, 2025 · You can enable mail flow with any SMTP server (for example, Microsoft Exchange or a third-party email server). The diagram below shows how connectors in Exchange Online or work with …

Create one or more connectors in Microsoft 365 to authenticate email messages from your on-premises mail servers by using either the sending IP address or a certificate.

Apr 27, 2022 · The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

Mar 22, 2025 · Configuring e-mail services tells the System.Net.Mail application programming interface (API) to which SMTP server to deliver the e-mail generated by your application.

Oct 22, 2024 · This article describes how email Simple Mail Transfer Protocol (SMTP) support in Azure Communication Services offers a strategic solution for the sending of emails.

Jun 22, 2023 · We have several systems and applications that currently use our internal smtp relay to send email notifications. We will need to change this to O365 smtp using basic / modern …

Your organization uses an on-premises application to send email, and the MAIL FROM address domain isn't an accepted domain in Exchange Online. You use a non-Microsoft service to relay messages by …

Nov 25, 2024 · If you have a hybrid setup of on-premises and cloud environments, you can take advantage of a hybrid configuration where email is routed through an on-premises Exchange server …