I'll second that. I would also make it the default behavior since many
may experience issues and not be aware of what exactly is going on
resulting in lost E-mail and extra support. I do not believe that
changing the behavior is going to produce any ill effects except for
possibly a handful of people that desire some form of branding, though
this would be achieved by way of setting up unique hosts in IMail.
I don't believe that what IMail does presently is technically not RFC
compliant, but it isn't desirable, and it is something that one would
want to avoid considering real-world short-sighted spam
blocking/qualification being used by both CBL and apparently Brightmail.
Matt
Dave Doherty wrote:
Hi Kevin-
2.3.2 defines the "client"
as the sending host attempting to pass a message to an SMTP "server"
host:
"In RFC 821, the two hosts participating in an SMTP transaction were
described as the "SMTP-sender" and
"SMTP-receiver". This document
has been changed to reflect current industry terminology and hence
refers to them as the "SMTP client" (or sometimes
just "the client")
and "SMTP server" (or just "the server"), respectively...."
And 4.1.1.1, which you
quoted, defines the EHLO/HELO string:
"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..."
I would suggest that the
FQDN of my IMail "client" is what I entered into the IMail
Administrator
applet as the Host Name, not
"mail.whatever_domain_is_trying_to_send.tld"
-d
----- Original Message -----
Sent:
Thursday, January 12, 2006 2:41 PM
Subject:
RE: [IMail Forum] Blacklisted by Imail "feature"
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.
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