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Old 08-04-2005, 09:04 PM   #1
Registered: Feb 2005
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SMTP Port always open

On my Linux desktop if port 25 SMTP is not open I cannot send mail, it has to be always open for Thunderbird to send mail. Is that good. Testing my Firewall states that port 25 is closed/inaccessible. Then how can one access my Mail folder? By closing port 25 with Stunnel should I not be able to send mail?

Old 08-05-2005, 12:06 PM   #2
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Distribution: Fedora
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Most linux distros are now configured by default to have SMTP listening on localhost (, which allows you to send outgoing mail, but will refuse any incoming remote connections and is a more secure setup. Verify what addresss it's listening on with netstat -pantu.
Old 08-05-2005, 11:34 PM   #3
Registered: Feb 2005
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It is listening on localhost ( port 25 which is open all the time. I also did a security scan on that port, it is inaccessible from outide.

Thanks much


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