How do i make postfix work with an ISP that blocks port 25?
 

I have a problem with postfix and my ISP. I currently installed Ubuntu LAMP server and i am running a website off of it using the php blog software called WordPress.

When my users try to sign up for mysite this software sends them an e-mail with a password in it. Unfortunetly i cannot seem to figure out how to make my e-mails send out on port 587 instead of 25.

Any help that you could provide would be awesome!!!

Taken from: http://www.seaglass.com/postfix/faq.html#chprt

16. How can I get Postfix to listen on a port other than 25?

Set the port in an smtpd entry in the master.cf file. You can change the existing smtpd entry or add an additional one depending on what you need.

Hope this helps.

Jon

Still cant get it to send on port 587...
 

Jon,

Thanks for the info. I tried it out but unfortunatly it did not work.

Here are my Master.cf and Main.cf (only took out my url <>)
Attachment 1900

Attachment 1901

Here is also the link to the help doc that my extreemly unhelpful ISP has provided.

http://www.att.com/esupport/article.jsp?sid=KB400335

At this point im scratching my head trying to figure out how to make this work.

Can you telnet locally and externally to 587?

so "telnet localhost 587" (or port number changed too) without quotes. I presume you have restarted postfix after making the change?

Also, do you have any firewall rules that will be getting in the way?

Jon