Thank you Mark. I did comment out the line "require verify
reverse_host_lookup" and
move "!authenticated = *" just after "local_parts = postmaster:abuse" but
still the result
is same. Yes, my clients has been trying to use my mail server and they can
send mail
comfortably using a different ISP. None of them can send email with their
own ISPs
and the IP addresses of those ISPs does not have any PTR record or 'A'
record in PTR.
They both can send emails though - if I disable the option "Verify the
existance of email
senders" from WHM/cPanel. Some of their partners can not send email even
though they
are in the whitelist. I checked that the guys, who can not send email have
some issues
with PTR record. I think that the problem is with that WHM option since I
tried with
default exim config setup with the same result. Do you've any suggestion how
to make
these IPs in a trusted list even before the option (Verify the existance of
email senders)
start checking for rDNS?
----- Original Message -----
From: "Mark Smith" <exim-users@???>
To: <exim-users@???>
Sent: Tuesday, July 12, 2005 11:52 PM
Subject: RE: [exim] how to stop exim from reverse lookup check for
trustedIPs...
>
> > From: exim-users-bounces@???
> > [mailto:exim-users-bounces@exim.org] On Behalf Of KHALID SHAWKAT
> > Sent: 13 July 2005 04:54
> > To: exim-users@???
> > Subject: [exim] how to stop exim from reverse lookup check
> > for trusted IPs...
> >
> > Hello Guys,
> >
> >
> > My client has been getting the following message in OE, while sending
> > email:
> >
> > ---------------
> > The message could not be sent because one of the recipients
> > was rejected by the server. The rejected e-mail address was
> > 'sales@???'. Subject 'hi', Account: 'SALES', Server:
> > 'mail.example.net', Protocol: SMTP, Server
> > Response: '550 Administrative prohibition', Port: 25,
> > Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79"
> > ---------------
> >
> <snip>
>
> It's the "require verify = reverse_host_lookup" line that's doing it.
>
> Are these local users trying to send mail out from your server? You seem
to
> be running a lot of unnecessary checks on authenticated users. You should
> move the "accept authenticated" stanzas so they come before any other
> checks.
>
> - Mark
>
>
>
>
