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Exchange 2019 SMTP Relay Issue After Adding New Server to Send Connector
I have an Exchange environment with two Exchange 2019 servers — one on-premises (EX01) and the other recently deployed in an Azure VM (EX02). The goal is to eventually decommission the old on-premise...
Hi Curious_Kevin16,
If I am not wrong, your query is that after adding the Exchange Server on an Azure VM, SMTP was not working, right? This might be due to outbound SMTP connectivity issues in Azure.
In an Azure subscription, for Enterprise Dev/Test subscriptions, port 25 is blocked by default. To allow SMTP from an Azure VM, you need a standard Enterprise Agreement or a Microsoft Customer Agreement for Enterprise (MCA-E) subscription.