Re: The connection was dropped by the remote host

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On 4 Aug 2006 00:07:13 -0700, ziqizhao@xxxxxxxxx wrote:

Jeff,
This message didn't get sent. I rewrite it again here.
I checked our SMTP configuration, in the general tab, the IP address is
not assigned specifically, is this the problem, because remote host
cannot see the IP of the server?
Besides, is it good enough to set domain name in the name field on the
general tab, I am worrying about if remote host can see the full domain
name instead of local server name, then it will drop a connection.

That's not usually the issue. If you have a broadband connection such
as a home cable or DSL connection, there are several issues. The
first is that the destination system has blocked your range of IP's.
This is common with large systems such as Yahoo or AOL, since home
broadband users are often compromised systems used for spamming.

The second is that if you don' control your DNS and your reverse DNS (
a lookup of the IP address and matched to the host name) doesn't match
your DNS entries, than it may decide you're a spammer as well and drop
the connection.

You can test these things at DNSStuff.com and DNSReports.com.

Jeff



Betty
Jeff Cochran wrote:
On 3 Aug 2006 10:39:39 -0700, ziqizhao@xxxxxxxxx wrote:

Hi everyone,
In my system.log I always some warning message from smtp service:

Message delivery to the remote domain 'XXXX.com' failed for the
following
reason: The connection was dropped by the remote host.

Sometimes it says the remote host is not responding which is
understandable
because even yahoo.com is not responding when you try to access the
email.
I am just wondering is there any specific reason for the remote host
drop
the connection?

It drops the connection because it doesn't like you. Literally. Or
at least the commands you send. Yahoo won't respond if you're coming
from a blocked address range, and many hosts will drop you if you fail
a spam check, such as no reverse DNS, dynamic IP, etc.

Jeff

.

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