I get a lot of spam whose From addresses are users that don't exist on
my system (random names like [EMAIL PROTECTED], [EMAIL PROTECTED], etc).
I recently set up a scheme to manually blacklist all From addresses on
my domains and un-blacklist the fifty or so "real" addresses mail can
legiti
Your MTA should be doing this job and not SA IMHO.
- Original Message -
From: "Rick Roe" <[EMAIL PROTECTED]>
To:
Sent: Wednesday, August 30, 2006 9:41 PM
Subject: catching fake usernames?
|I get a lot of spam whose From addresses are users that don't e
On Wed, Aug 30, 2006 at 08:41:37PM -0700, Rick Roe wrote:
> I get a lot of spam whose From addresses are users that don't exist on
> my system (random names like [EMAIL PROTECTED], [EMAIL PROTECTED], etc).
[...]
> Am I missing something?
Typically it's easiest (and standard) to simply not acce
On 30-Aug-06, at 11:41 PM, Rick Roe wrote:
I get a lot of spam whose From addresses are users that don't exist
on my system (random names like [EMAIL PROTECTED], [EMAIL PROTECTED],
etc). I recently set up a scheme to manually blacklist all From
addresses on my domains and un-blacklist the f
Theo Van Dinter wrote:
> On Wed, Aug 30, 2006 at 08:41:37PM -0700, Rick Roe wrote:
>
>> I get a lot of spam whose From addresses are users that don't exist on
>> my system (random names like [EMAIL PROTECTED], [EMAIL PROTECTED], etc).
>>
> [...]
>
>> Am I missing something?
>>
>
On Thu, August 31, 2006 05:41, Rick Roe wrote:
> like there should be a simpler, more automatic way to do this. Am I
> missing something?
in postfix main.cf
smtpd_reject_unlisted_sender = yes
--
"This message was sent using 100% recycled spam mails."
On Wednesday 30 August 2006 19:56, Theo Van Dinter wrote:
> On Wed, Aug 30, 2006 at 08:41:37PM -0700, Rick Roe wrote:
> > I get a lot of spam whose From addresses are users that don't exist on
> > my system (random names like [EMAIL PROTECTED], [EMAIL PROTECTED], etc).
>
> [...]
>
> > Am I missing
On Wednesday 30 August 2006 21:25, Benny Pedersen wrote:
> On Thu, August 31, 2006 05:41, Rick Roe wrote:
> > like there should be a simpler, more automatic way to do this. Am I
> > missing something?
>
> in postfix main.cf
>
> smtpd_reject_unlisted_sender = yes
Won't work if ONE of the recipients
On Thu, August 31, 2006 07:24, John Andersen wrote:
> Won't work if ONE of the recipients is real...
still better then nothing, spf or sender access can take the rest, but since i
still not using spf in mta its needed to be done as a restriction class in
postfix
could be a sender class that reje
On Thu, 31 Aug 2006, Matt Kettler wrote:
> milter-greylist, while designed for greylisting, has
> grown to have a quite flexible ACL system. Using it you could
> "whitelist" all your local IPs that legitamately generate mail with your
> domain, then follow it up by blacklisting anything else that
> On Thu, August 31, 2006 05:41, Rick Roe wrote:
>> like there should be a simpler, more automatic way to do this. Am I
>> missing something?
>
> in postfix main.cf
>
> smtpd_reject_unlisted_sender = yes
In exim.conf, somewhere in acl_check_rcpt:
require verify = sender
Rick Roe wrote:
I get a lot of spam whose From addresses are users that don't exist on
my system (random names like [EMAIL PROTECTED], [EMAIL PROTECTED], etc).
I recently set up a scheme to manually blacklist all From addresses on
my domains and un-blacklist the fifty or so "real" addresses mai
John Andersen wrote:
On Wednesday 30 August 2006 21:25, Benny Pedersen wrote:
On Thu, August 31, 2006 05:41, Rick Roe wrote:
like there should be a simpler, more automatic way to do this. Am I
missing something?
in postfix main.cf
smtpd_reject_unlisted_sender = yes
Won't
>>
>> Rick Roe wrote:
>> > I get a lot of spam whose From addresses are users that don't exist on
>> > my system (random names like [EMAIL PROTECTED], [EMAIL PROTECTED], etc).
>> > I recently set up a scheme to manually blacklist all From addresses on
>> > my domains and un-blacklist the fifty
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