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Running Postfix behind NAT

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1. Login to console via SSH

2. Edit Postfix configuration file:
[for NXS device type:]
nano /etc/postfix/main.cf

[for NPE device type:]
nano /mnt/nand-user/postfix/etc/postfix/main.cf

3. Change line:
proxy_interfaces = [your external IP address]

4. Exit with Alt+x, confirm y and and enter

5. Reload postfix configuration with:
[for NXS device type:]
service postfix reload

[for NPE device type:]
postfix reload

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