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How to block (deny) email from ...

What is the easiest way to block all mails coming from a particular sender or domain.
I'm receiving a lot of virus-containing messages from a particular person. The virusscanner intercepts them but it would be easier to just block this person.

Any ideas?

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0 SveN_01 over 22 years ago

Hey,

just wanted to keep the post alive. But I want to block emails for a special user (which does not exist) in our domain.
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0 SveN_01 over 22 years ago

Hey,

just wanted to keep the post alive. But I want to block emails for a special user (which does not exist) in our domain.
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0 lanman over 22 years ago in reply to SveN_01

If using ASL 3.2+ you can add the domain to the SMTP Proxy Real Time Blackhole list. This will block the entire domain.
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0 DanielC over 22 years ago in reply to lanman

But can you block individual names?

Or can you block emails with specific words (not only the extention of an attachment)

It does not seems wise to block yahoo.com or hotmail.com for everyone behind the firewall...

Daniel
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0 lanman over 22 years ago in reply to DanielC

There is a way but it requires editing some files on ASL. Look under hacks and do some searches on BB I have seen the solution out there but am not sure where
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0 SveN_01 over 22 years ago in reply to lanman

Hi Lanman,
sorry but I found nothing that could handle my problem.
Here's what I want to do:
Someone sends (mostly Spammers) Emails to user@mydomain.com and I want to block these mails.
The problem is that user@mydomain.com is not in the mime-text of the email that is received (because that are mostly Mailing-Lists). So the Expression filter does not block it.
I think I have to configure something in exim that this user is blocked.

Does someone have an idea?

[size="1"][ 18 October 2002, 10:28: Message edited by: SveN ][/size]
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0 iccnt over 22 years ago in reply to SveN_01

Hi all,
Has anyone found an answer to the previous post?
I would really like to know.

Thanks
Iccnt
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0 Simon Shaw over 22 years ago in reply to iccnt

To block users or domain edit this file:
/var/chroot-smtp/etc/exim.blockedsenders

format like:
spammer@spam.com
bigspamhole.org
spammersrus.edu

etc.
Save the file and restart the SMTP daemon.
/etc/rc.d/smtp restart
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0 goldfly over 22 years ago in reply to Simon Shaw

Yeah, but I think he is trying to block an internal user from using the smtp proxy. The internal network has been specifically ALLOWED. Is it possible to then can one user?
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0 Simon Shaw over 22 years ago in reply to goldfly

Simple, go threaten the user with hellfire unless they desist. Go to their manager or something.
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0 DanielC over 22 years ago in reply to Simon Shaw

It does not seems not to work.

There is a line in the file /etc/chroot-smtp/etc/exim.conf that read sender_reject_recipients = @@lsearch*;/etc/exim.blocksenders

At first sight this looks to point to the wrong directory. (there is no file /etc/exim.blockedsenders)

Do I need to change the exi.conf file then?

Thanks
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0 Simon Shaw over 22 years ago in reply to DanielC

No, you don't need to change the conf file.
remember the path is chroot'ed.
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