Change smtp port from 25 to 26

Hello.
My ISP is blocking my smtp port 25, so I have been using port forward in my airport. 26-25. The DNS is set up til contact me on port 26.
Now I have a new router, and it doesn't have that feature, so I would like to have my mac server to listen on port 26 as smtp instead.
How do I change that?

You need to add a second listener to your mail server by editing the /etc/postfix/master.cf file. You must do this as root and using a command line editor is recommended. Make a backup of the file first. You do not need to stop mail services to edit the file but you will need to stop and then start mail to make the change recognized.
The line you need to add should look like this:
26 inet n - n - - smtpd
Test it internally after restarting mail services with a:
telnet localhost 26
Hope this helps

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Is there any way to change OIM default SMTP port from 25 to 587

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IT Resource info..
Name: Email Server
Type : Mail Server
Parameters:
**Authentication**
Server Name
User Login
Password
Thanks,
Pradeep
Edited by: user13074170 on May 8, 2012 5:27 AM

check the note :
Document 1417374.1 Can Email Server Be Configured For Non-Standard Port (Other That 25) ?
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Dear All,
I am currently running messaging server 6.2 and i want to change the smtp port to 75
Are there any bad impacts on this, or can i directlt change it?
Is this the only configutil parameter that i should change:
service.http.smtpport ?
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s@mira123 wrote:
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Hi,
my ISP blocks port 25, ok and no problem - not for the iphone.
When i change port 25 to 587 it checks the config - works.
After i gone back in the menu the account list, to save the settings, (still in the settings) and go again to the SMTP settings, port 587 has changed to port 25.
Using iOS 4.
Some ideas?
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Still the same...
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I'm trying to set up e-mail alert notifications in Enterprise Manager. I have port 25 heavily used elsewhere, and I beleive this is preventing connection. I cannot conect to port 25 with the telnet test, but I can cannot to port 23. How do I change ports?
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This same firewall could be configured to prevent System B from initiating a connection on port #25 with System A.
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Hi all,
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There's a way to change this default port (25) into LMS to connect to maill.xxxx.com 26 ?
I got this error message cause i didnt connect to 25.
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Hi All,
I have an email server that its SMTP port is 135.
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Hi Mark, thanks for using our forum, my name is Johnnatan and I am part of the Small business Support community. You can change the port number using a port-forwarding or a One-to-One NAT in your device, you can also specify the syslog server, I´ll share with you some documentation about it:
http://www6.nohold.net/CiscoSB/Loginr.aspx?login=1&pid=2&app=search&vw=1&articleid=544
http://www6.nohold.net/CiscoSB/Loginr.aspx?login=1&pid=2&app=search&vw=1&articleid=346
I hope you find this answer useful,
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Ya , Manish you are right IWS 4.1 is really old.
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Message was edited by:
write2jamesbond

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Change smtp port from 25 to 26

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