Bug#237947: marked as done (exim4: please add support for ACLs run at _start_ of data (acl_smtp_predata))
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From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: exim4: please add support for ACLs run at _start_ of data (acl_smtp_predata)
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Date: Sun, 14 Mar 2004 16:19:22 +0100
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Package: exim4
Severity: wishlist
Tags: upstream
Hi,
While implementing greylisting in exim4 we came across an interesting
possibility: Reject not _after_ DATA, but actually on the DATA command
itself. (Most greylisting implementations seem to reject on RCPT, but
that potentially breaks callouts etc. in all sorts of ugly ways.) Ie.
something like:
220 exim4 blabla
EHLO domain
250 OK
MAIL FROM: <foo@bar>
250 OK
RCPT TO: <bar@foo>
250 Accepted
DATA
401 Sorry, greylisted, try again later.
Thus, one doesn't have to waste bandwidth and processing power on
something that will only be thrown away later, but one doesn't break
callouts either.
The simplest way to achieve this would probably be adding an
acl_smtp_predata ACL, run at the DATA command. Would this be possible to
implement?
-- System Information:
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.3
Locale: LANG=C, LC_CTYPE=en_US.ISO8859-1
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Date: Sun, 16 Jan 2005 21:08:19 +0100
From: Andreas Metzler <ametzler@debian.org>
To: 274246-done@bugs.debian.org, 267994-done@bugs.debian.org,
262592-done@bugs.debian.org, 277817-done@bugs.debian.org,
265818-done@bugs.debian.org, 241725-done@bugs.debian.org,
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Subject: exim4 4.43-3 uploaded to Debian unstable
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I've uploaded exim4 4.43-3 to unstable a couple of hours ago, and can
close a couple of bugs fixed by the new upstream version.
* New upstream version. (am) (Closes: #274246, #267994)
- no more unescaped hyphens in exim.8. (Closes: #262592)
- no more warnings in exipick.8 (Closes: #277817)
- New option tls_on_connect_ports. (Closes: #265818)
- better documentation about differences in configuring for GnuTLS or
OpenSSL. (Closes: #241725)
- verify = header_sender now respects callout options. (Closes: #260114)
- There is now an overall timeout for performing a callout verification.
(Closes: #261511)
- Less typos in filter.txt. (Closes: #230545)
- New ACL: acl_smtp_predata, useful for greylisting. (Closes: #237947)