Change Sentora and Postfix SMTP port 25

[thepascalboy]

if you are having trouble with port 25 its almost for 100% sure that your network provider is blocking this, maybe you can ask them for a solution. My hosting provider got there own smtp server witch I am now connected to with the following code in /etc/postfix/main.cf

Code:

relayhost = smtp.ziggo.nl

smtp.ziggo.nl is in this example the smtp server from my network provider beacuse the are blocking port 25. I think you need to use the smarthost of your internet provider.