How to Open Port 25: 2 Ways in Windows Firewall
![How to Open Port 25: 2 Ways in Windows Firewall](https://www.wikihow.com/images/thumb/f/f8/Open-Port-25-Step-17.jpg/v4-460px-Open-Port-25-Step-17.jpg.webp)
Allow outbound connections on TCP port 25 in Windows Are you hosting a mail server on your Windows PC? If you want to allow users to send mail through a mail server like Exchange, Docker, or hMail, you'll need to make sure the SMTP port,
Allow outbound connections on TCP port 25 in Windows Are you hosting a mail server on your Windows PC? If you want to allow users to send mail through a mail server like Exchange, Docker, or hMail, you'll need to make sure the SMTP port
Windows XP SP2 Firewall
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![](https://www.alitajran.com/wp-content/uploads/2022/05/ISP-blocks-SMTP-on-port-25-Exchange-Toolbox.png)
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![](https://learn.microsoft.com/en-us/azure/virtual-network/media/tutorial-filter-network-traffic/virtual-network-filter-resources.png)
Tutorial: Filter network traffic with a network security group (NSG) - Azure portal
![](https://www.wikihow.com/images/thumb/b/b3/Open-Port-25-Step-18.jpg/v4-1200px-Open-Port-25-Step-18.jpg)
How to Open Port 25: 2 Ways in Windows Firewall
![](https://www.interserver.net/tips/wp-content/uploads/2017/06/open-ports7.png)
How to Open Ports in Windows Firewall? - Interserver Tips
![](https://ozeki-sms-gateway.com/attachments/6935/select-inbound-rules.webp)
Allowing SMTP through firewall