Got it.
I created /etc/exim/email_users containing a list of acceptable local parts of
email addresses and full names
eg [email protected]<mailto:[email protected]> => abc
- - 8< - - - email_users - - - - - - - - - - - - -
abc: Abel Cain
john: John Doe
jane: Jane Doe
...
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
...and added the following line to the acl_check_rcpt: section of the
/etc/exim/exim.conf file
drop message = DROPPED - Recipient NOT ON accept list
!local_parts = lsearch;/etc/exim/email_users
Now telnet into port 25 to create email gives....
220 Baruwa 2.0 Wed, 19 Jun 2013 10:49:05 +0100
helo rpf-ext
250 marge.mydomain.ext Hello rpf-ext [192.168.0.109]
mail from: [email protected]
250 OK
rcpt to: [email protected]
550 DROPPED - Recipient NOT ON accept list
ALTERNATIVE
added these lines to exim.conf instead of the above ones...
discard
!local_parts = lsearch;/etc/exim/email_users
220 Baruwa 2.0 Wed, 19 Jun 2013 10:57:35 +0100
helo rpf-ext
250 marge.mydomain.ext Hello rpf-ext [192.168.0.109]
mail from: [email protected]
250 OK
rcpt to: [email protected]
250 Accepted
data
354 Enter message, ending with "." on a line by itself
subject: I think I've sent this
I think I sent this
.
250 OK id=1UpF9c-0001cu-JY
BUT THE MESSAGE IS SILENTLY DROPPED... tail /var/log/exim/main.log shows...
2013-06-19 11:04:30 H=(rpf-ext) [192.168.0.109] F=<[email protected]>
rejected RCPT [email protected]: discarded by RCPT ACL
2013-06-19 11:04:47 1UpF9c-0001cu-JY <= [email protected] H=(rpf-ext)
[192.168.0.109] P=smtp S=224
2013-06-19 11:04:47 1UpF9c-0001cu-JY => blackhole (RCPT ACL discarded
recipients)
2013-06-19 11:04:47 1UpF9c-0001cu-JY Completed
Ritchie
From: [email protected] [mailto:[email protected]]
On Behalf Of Ritchie P. Fraser
Sent: 18 June 2013 16:19
To: Baruwa users list
Subject: Re: [Baruwa] Rejecting mail for unrecognised recipients
thanks,
I've got exim rather than postfix, but I'll give it a go...
R
From: [email protected]<mailto:[email protected]>
[mailto:[email protected]] On Behalf Of marco rosenstein
Sent: 18 June 2013 15:50
To: Baruwa users list
Subject: Re: [Baruwa] Rejecting mail for unrecognised recipients
if you are using postfix like I am, you can set up a list called
relay_recipients with all your users in it in this format:
[email protected]<mailto:[email protected]> OK
add the line to your postfix main.cf file like this
relay_recipient_maps = hash:/etc/postfix/relay_recipients
pointing to where ever your file is.
Then after you compile the list, run
postmap /etc/postfix/relay_recipients
run that any time you edit the list.
You can pull your AD users and export them to the list also. Follow point 17
of this tutorial:
http://www.howtoforge.com/the-perfect-spamsnake-ubuntu-jeos-12.04-lts-precise-pangolin-p4
You can set this to run as a script to keep this list updated and automatically
"postmapped".
I imagine you can use a similar setup for exim or whatever mail you are using.
________________________________
From: [email protected]<mailto:[email protected]>
To: [email protected]<mailto:[email protected]>
Date: Tue, 18 Jun 2013 11:13:16 +0000
Subject: [Baruwa] Rejecting mail for unrecognised recipients
Hi,
How do I set up Baruwa to reject / not accept email for addresses that are NOT
on a list (or in the Baruwa DB)?
Kind Regards,
Ritchie Fraser
Systems Administrator
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