Re: [courier-users] Courier not accepting external connections atall

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Old 02-17-2008
Bernd Wurst
 
Posts: n/a
Default Re: [courier-users] Courier not accepting external connections atall

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Hi.

On Sunday 17 February 2008, Mircea Zahan wrote:
> >> helo domain
> >> 250-dc Ok.

> >250-dc also is not courier but it's also not standards conform. Tree
> > digits and a space must be the beginning of the (last) answer line.
> >
> >Also, "domain" is propably not resolvable and therefore no good HELO nam=

e.
> dc is the name of the machine courier is running on.


You replaced "250 dc Ok." by "250-dc Ok." manually? Why?


> Ok, you're right, I wasn't talking ESMTP.


So, you could try to do this.


> Bottom line: I do connect to the right machine, the machine receives
> external TCP connections because they appear in maillog, but courier does
> not answer anything after accepting the connection. At least that's what
> the diagnostic tool from www.mxtoolbox.com says.


That may be because your IDENT-lookup is still enabled and the remote clien=
t=20
does not offer an ident server. Try switching it off (extend TCPDOPTS=20
by -noidentlookup).


To get valuable assistance, please use
=2D correct host names. If your server shall be on the internet, please use=
=20
internet hostnames. Neither "domain" nor "dc" is a FQDN and therefore shoul=
d=20
not be used in the internet. "hostname -f" should give you a full host name=
,=20
containing the name of the machine and the domain it lives in. If that's no=
t=20
the case, you should configure your machine's hostname according to your=20
operating system's docs.
=2D ESMTP. If Courier complains about an ESMTP command error, this may be t=
rue.
=2D as much from the default configuration as possible. If everything works=
,=20
customize bit by bit and you could keep in mind what worked and what did no=
t.=20
If you customize a lot of stuff, there are many places where you could have=
=20
made a mistake or where things could get mixed up.

regards, Bernd

=2D-=20
You know it's going to be a bad day when your twin brother forgets your=20
birthday.

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