[nflug] RHEL 5.1/PostFix Refusing Remote Connections

[Brad Bartram]

First thing - have you configured postfix to listen to port 25 from the
world?
When you connect from outside your local network, do your logs show a
connection?  If so, what are the appropriate entries and do they give any
reason for the rejection?  If not, what exactly happens when you connect
over port 25 - do you get a real error from the application, does the
connection just hang with no answer, or is it a connection refused?

Brad

On Dec 26, 2007 3:29 PM, Robert Wolfe <robertwolfe at localnet.com> wrote:

> Erek Dyskant wrote:
> > Robert,
> >       Your ISP is probably filtering port 25 outside of their network,
> as
> > ISPs have had so many problems with open relays sucking up all their
> > bandwidth.  Sadly to run a mail server these days one generally needs to
> > have a dedicated server or a business-class connection these days.
> >       Call your ISP to ask what ports they filter, and see if there's
> any way
> > you can convince them you know what you're doing (if your ISP is
> > localnet you may be in luck <grin>)
> >       Best of luck.
> >
> > --Erek
> >
>
> Actually, if I switch over to my Windoze-based mail server, SMTP traffic
> flows just fine over port 25.
>
> --
> Robert Wolfe
> Systems Administrator
> LocalNet Corp.
> CoreComm Internet Services
> (517) 664-8924
>
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