Request to enable outbound SMTP (Port 25) for transactional email traffic

Question

Hello Azure team,

I am requesting assistance with enabling outbound SMTP traffic (port 25) for a small application running inside my Azure Virtual Network.

About my subscription & environment

•	Subscription type: Pay-As-You-Go Dev/Test

•	Account age: ~2 years, consistently active

•	Service location: Virtual Network with a single VM / service that needs to send emails

•	Use case: Strictly low-volume transactional emails

(password reset, login verification, system notifications)

Important clarifications

•	No bulk sending or marketing emails

•	All outbound email traffic is authenticated, rate-limited, and monitored

•	The application relies on SMTP only for user verification and security notifications

•	I fully understand Azure’s anti-abuse policies and comply with them

Why I am requesting port 25

My application requires direct SMTP connectivity for testing and future deployment. Using port 587 or a third-party relay is possible, but in this specific setup I need to verify direct SMTP communication from the VM.

What I am asking

Could you please evaluate whether the outbound port 25 restriction can be removed for my subscription?

If additional verification or information is needed, I will gladly provide it.

Thank you for your help.