Hi
Dave,
Excellent request.
We're
digging into this some more, trying to
figure out a way to comply with the IETF standard while also providing an
"optional" feature to address this issue. Certainly the messaging space has
changed over the years (especially around
spam, blacklists, etc.) and some of the original standards can sometimes
be dated or restrictive.
Here's a snippet from RFC
2821:
4.1.1.1 Extended HELLO (EHLO) or HELLO (HELO)
"These commands are used to identify
the SMTP client to the SMTP
server. The argument field
contains the fully-qualified domain name
of the SMTP client if
one is available. In situations in which the
SMTP client
system does not have a meaningful domain name (e.g., when
its
address is dynamically allocated and no reverse mapping record is
available), the client
SHOULD send an address literal (see section
4.1.3), optionally
followed by information that will help to identify
the client
system. y The SMTP server identifies itself to the SMTP
client in the connection greeting reply and in the response to
this
command."
bye for now,
kg
It would be good to make
it optional.
Any chance of a patch?
----- Original Message -----
Sent: Thursday, January 12, 2006 11:11
AM
Subject: Re: [IMail Forum] Blacklisted
by Imail "feature"
cannot be stopped at this time other than
assigning an IP address to each domain.
Eric S
----- Original Message -----
Sent: Thursday, January 12, 2006
10:52 AM
Subject: Re: [IMail Forum]
Blacklisted by Imail "feature"
Hi Eric-
I got CBL to whitelist us in
November and thought the problem was solved. Then it happened again
yesterday with Comcast, and it seems like a good idea to turn this off as
other admins get the idea that they can detect spammers this
way.
I looked in the archives and
couldn't find anything lately. If anybody knwos how to stop this, please
let me know.
-d
----- Original Message -----
Sent: Thursday, January 12, 2006
9:45 AM
Subject: Re: [IMail Forum]
Blacklisted by Imail "feature"
Check the archives. This was being
discussed over the last week or so. This comes up every once in a while.
Usually if you contact CBL they will permanently whitelist you so you
don't get listed again. The actual test is way to restrictive which
makes it just about invalid for those running IMail and some other
server packages which impersonate the virtual domains in their HELO/EHLO
strings.
Eric S
----- Original Message -----
Sent: Thursday, January 12, 2006
12:16 AM
Subject: [IMail Forum]
Blacklisted by Imail "feature"
Hi, all-
Running Imail 8.15 here, but
this applies to many other versions.
I have recently been
blacklisted by CBL and Comcast as a result of a feature that appears
to be unique to IMail. It seems that there is some way in which, for outgoing mail,
Imail identifies itself as "mail." followed by whatever domain
originates the email. Since I have several hundred domains, that means
the server identifies itself as several hundred domains, all at one IP
address. To uneducated recipients, this looks like a spam
generator.
Several other users on the
Declude list report similar problems.
Is there a way to shut off this
function so the server always identifies itself with the official host
name?
-Dave Doherty
Skywaves,
Inc.
|
