Change Sentora and Postfix SMTP port 25

[barret0]

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.

Hello,

in my logs appears 
"Jun  2 23:28:13 www2 postfix/smtpd[7186]: connect from 201-2-217-102.bnut3702.dsl.brasiltelecom.net.br[201.2.217.102]"

is just to put 
"relayhost = brasiltelecom.net.br"
?
how can I check it?