need bcc address information to block spammer

06/11/2006, 17h52

I am getting spam into a default mailbox addressed to a bcc
address. I cann't tell who it is addressed to so I cannot
block that particular address. I can see from the maillog
that there are two recipients but only one in the "To:"
field. Therefore, the address I want to block is in the
bcc field and is being stripped. Is there a way to either
add the addressed email address (as opposed to the
re-directed mailbox address) to the maillog.

If not, how do I stop sendmail from stripping the bcc header
information? This server only serves one mailbox, mine.
In other words it is not a commercial server.
--

06/11/2006, 21h11

In article <12kuti4463njp69@corp.supernews.com> "nameless"
<sendmail@allen-edwards.com> writes:
>
>I am getting spam into a default mailbox addressed to a bcc
>address. I cann't tell who it is addressed to so I cannot
>block that particular address. I can see from the maillog
>that there are two recipients but only one in the "To:"
>field. Therefore, the address I want to block is in the
>bcc field and is being stripped. Is there a way to either
>add the addressed email address (as opposed to the
>re-directed mailbox address) to the maillog.

Well, all recipients are logged in the to= lines, but only after
aliasing and duplicate elimination. For your case the simplest way is
probably to (temporarily) raise the log level to 15, which will show the
SMTP dialogue. The recipients will be in the 'RCPT To:' lines.

>If not, how do I stop sendmail from stripping the bcc header
>information?

The Bcc header, if there ever was one, will generally be gone long
before sendmail receives the message. Mail transport is based on the
envelope (carried in SMTP 'RCPT To:' and 'MAIL From:' commands), not on
header contents. The Bcc: header is essentialy just a way for the human
user of a MUA to inform it about desired recipients that shouldn't be
included in the header - it's really the MUA's job to delete it (or
rather not create it in the first place) and copy the address therein to
the envelope, though some lazy non-SMTP-speaking MUAs expect sendmail to
do that job.

--Per Hedeland
per@hedeland.org

06/11/2006, 17h52	#1
nameless Messages: n/a Hébergeur:	need bcc address information to block spammer I am getting spam into a default mailbox addressed to a bcc address. I cann't tell who it is addressed to so I cannot block that particular address. I can see from the maillog that there are two recipients but only one in the "To:" field. Therefore, the address I want to block is in the bcc field and is being stripped. Is there a way to either add the addressed email address (as opposed to the re-directed mailbox address) to the maillog. If not, how do I stop sendmail from stripping the bcc header information? This server only serves one mailbox, mine. In other words it is not a commercial server. --

06/11/2006, 21h11	#2
Per Hedeland Messages: n/a Hébergeur:	Re: need bcc address information to block spammer In article <12kuti4463njp69@corp.supernews.com> "nameless" <sendmail@allen-edwards.com> writes: > >I am getting spam into a default mailbox addressed to a bcc >address. I cann't tell who it is addressed to so I cannot >block that particular address. I can see from the maillog >that there are two recipients but only one in the "To:" >field. Therefore, the address I want to block is in the >bcc field and is being stripped. Is there a way to either >add the addressed email address (as opposed to the >re-directed mailbox address) to the maillog. Well, all recipients are logged in the to= lines, but only after aliasing and duplicate elimination. For your case the simplest way is probably to (temporarily) raise the log level to 15, which will show the SMTP dialogue. The recipients will be in the 'RCPT To:' lines. >If not, how do I stop sendmail from stripping the bcc header >information? The Bcc header, if there ever was one, will generally be gone long before sendmail receives the message. Mail transport is based on the envelope (carried in SMTP 'RCPT To:' and 'MAIL From:' commands), not on header contents. The Bcc: header is essentialy just a way for the human user of a MUA to inform it about desired recipients that shouldn't be included in the header - it's really the MUA's job to delete it (or rather not create it in the first place) and copy the address therein to the envelope, though some lazy non-SMTP-speaking MUAs expect sendmail to do that job. --Per Hedeland per@hedeland.org

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