How to set up a multifunction device or application to send email …
SMTP relay: Send email as an email server through Microsoft 365 or Office 365. The connection is authenticated using an inbound connector. Direct Send: Send unauthenticated email as an external …
Send email with SMTP and XOAuth2 using .NET
May 29, 2025 · This article describes how to use SMTP and OAuth to send emails to Email Communication Services.
Set up connectors to route mail between Microsoft 365 or Office 365 …
Jul 28, 2025 · You can enable mail flow between Microsoft 365 or Office 365 and any SMTP-based email server, such as Exchange or a third-party email server. The diagram below shows how …
Email SMTP support in Azure Communication Services
Apr 16, 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.
smtp port 25 is blocked - need to unblock - Microsoft Q&A
Apr 21, 2025 · Even though Office 365 allows SMTP relay over port 25, Azure VMs cannot send unauthenticated email over port 25 unless certain conditions are met. How to fix it?
Enable or disable SMTP AUTH in Exchange Online
Jan 22, 2024 · The SMTP AUTH protocol is used for SMTP client email submissions, typically on TCP port 587. SMTP AUTH supports modern authentication (Modern Auth) through OAuth in addition to …
Test-SmtpConnectivity (ExchangePowerShell) | Microsoft Learn
When you run the Test-SmtpConnectivity cmdlet against a Mailbox server, the cmdlet attempts to establish an SMTP connection to all bindings of all Receive connectors hosted on that server.
SMTP - Connectors | Microsoft Learn
SMTP (Simple Mail Transfer Protocol) is an internet standard for email supported by most email processing servers. Connect to SMTP to send email. This connector is available in the following …
Email non-delivery reports and SMTP errors in Exchange Online
Admins can learn about SMTP errors and non-delivery reports (also known as NDRs or bounce messages) that are generated in Exchange Online.
5.7.60 SMTP; Client does not have permissions to send as this sender.
Oct 21, 2024 · Based on your description, the error message "5.7.60 SMTP; The client does not have permission to send as this sender" usually indicates a permissions issue related to the "Send As" …