Cannot Send Email while Connected to CyberGhost VPN

If you are unable to send emails while connected to a VPN server, it might be that CyberGhost VPN has blocked your email provider’s TCP port 25. Port 25 is the default SMTP port that enables transfers between email servers. In recent years, internet service providers and email providers have started blocking port 25 as a security measure because of the prevalence of email-based attacks associated with the port.

To solve this issue, please adjust your CyberGhost VPN settings.

macOS

On macOS, please follow these steps:

1. Open CyberGhost VPN.
2. Click on the cog icon in the upper right corner.
3. Select Preferences.
4. Enable Allow access to devices on local network.

Note: The Allow access to devices on local network feature is only available with the IKEv2 protocol. You can change the protocol under Preferences. 

iOS

On iPhones and iPads, please follow these steps:

1. Open CyberGhost VPN.
2. Tap on the cog in the upper right corner.
3. Select VPN.
4. Toggle Allow access to devices on local network on.

Android

On Android, please follow these steps to exclude your email app from the VPN tunnel. Please keep in mind that any traffic through your email app will not be encrypted.

1. Open CyberGhost VPN.
2. Tap on the cog in the upper right corner.
3. Select VPN.
4. Go to App Split Tunnel.
5. Tap Mode.
6. Select Custom rules.
7. Uncheck the box next to your email app.

Windows

On Windows, please follow these steps to exclude the domains associated with your email provider from the VPN tunnel. Please keep in mind that any traffic through these domains will not be encrypted.

1. Open CyberGhost VPN.
2. Go to Smart rules.
3. Go to Exceptions.
4. Toggle the button under Make exceptions on.
5. Enter the domains associated with your email providers. 

Note: You might need to enter the SMTP, POP, and IMAP domains to the exception list. This option is only available with the OpenVPN protocol.

Need assistance? Contact our Customer Support team:

• via email at support@cyberghost.ro 
• via online request at https://support.cyberghostvpn.com/hc/en-us/requests/new 
• via 24/7 Live Chat by clicking the Support button below