[quoted text, click to view] On 4 Aug 2006 00:07:13 -0700, ziqizhao@gmail.com 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
[quoted text, click to view] >Betty
>Jeff Cochran wrote:
>> On 3 Aug 2006 10:39:39 -0700, ziqizhao@gmail.com 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
