[SOLVED] Postfix - I can send mail from my computer; but others can't send to me...
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Either your router or you server's ip-table rules is blocking a necessary inbound port or protocol.
I would log in to my router and have a look at the logs after trying to send an email. Then also look into your server /var/log messages around the pertinent times and dates of your test email.
How do I get this marked solved... Turned out my ISP doesn't block port 25.. I changed postifix back to port 25 and the emails came in.. It doesn't mean my ISP will block port 25 in the future.. Just all works for now..
Sorry... Letters were small and I've been up all night. Maybe I should sleep... I may have found another solution just to scared to use it at the moment... Anyone know how the /etc/services work in Linux... I saw something here... http://www.dyndns.com/support/kb/mai..._outbound.html
I don't want to do anything until I get a good grasp of what I am doing...
Question is: What actually are you trying to do? Why do you need Postfix to accept connections on different port if normal application works with normal port (25)? Do you think that other Mailservers all around the world will look at any other port beside 25?
If your ISP decides to block port 25, you will just have to pay for service that will keep that ports open.
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