* Brad Knowles b...@shub-internet.org:
On Oct 22, 2012, at 5:40 PM, Stephen J. Turnbull turnb...@sk.tsukuba.ac.jp
wrote:
I'm dubious about the net value of CAPTCHAs. Personally, I generally
take a CAPTCHA as a NO TRESPASSING -- THIS MEANS YOU! sign, and
don't go back.
CAPTCHAs are
On 10/22/2012 11:55 PM, Ralf Hildebrandt wrote:
I recently got 30 new comments on my blog, all of which were spam.
And of course I'm using a CAPTCHA there. So Brad's point is probably
valid.
I don't like captcha's either, and one of their problems is that they're so
easy to see
Le 23/10/2012 17:17, Carl Zwanzig a écrit :
I've used a similar method for help email to places like yahoo. At the
bottom of the text I ask Please tell me your favorite color so I know
I'm working with a real person. Seems to work.
yes I also have public passwd on a wiki. By the way the pas
Note that for the majority of what I have seen in this attack it is the return
email messages that the exploiters desire. I have seen some subscriptions
actually get through but I have not seen them exploited in any way other than
to add to the flood of emails to the subscriber. I have
On Oct 23, 2012, at 8:41 AM, jdd jdani...@free.fr wrote:
that said there are some real human paid to catch web site, and against that
no luck :-(
There's an old axiom in the security business that no defense can stop a
sufficiently motivated attacker with sufficient resources. The US Secret
Hi, when I try to send an e-mail to my list (only one recipient, the list
itself), I get these:
In mailman's smtp logs:
Oct 22 13:26:17 2012 (22940) xxx smtp to contas for 828 recips,
completed in 1.705 seconds
In mailman's post logs:
Oct 22 13:26:17 2012 (22940) post to contas from
Citando Rodrigo Abrantes Antunes rodrigoantu...@pelotas.ifsul.edu.br:
Hi, when I try to send an e-mail to my list (only one recipient, the
list itself), I get these:
In mailman's smtp logs:
Oct 22 13:26:17 2012 (22940) xxx smtp to contas for 828
recips, completed in 1.705
Am I understanding correctly that the list itself is a member of the list?
Sounds like an email loop to me. What are you trying to do?
-- Gary Kalbfleisch
-- Director of Technology Support Services
-- Shoreline Community College
-- (206) 546-5813
-- (206) 546-6943 Fax
Hi, when I try to send an e-mail to my list (only one recipient, the list
itself), I get these:
Aren't you creating a loop here? Why are you putting the list itself on
the list as its only recipient? This appears to me to be an invitation
for an endless loop.
--
Lindsay Haisley | Real
On Mon, 2012-10-22 at 13:46 -0200, Rodrigo Abrantes Antunes wrote:
Any ideas?
The behavior of Mailman with respect to the number of recipients
specified in any single SMTP transaction is controlled by
SMTP_MAX_RCPTS, which should be less than the max number of recipients
allowed by the SMTP
Rodrigo Abrantes Antunes wrote:
Hi, when I try to send an e-mail to my list (only one recipient, the list
itself), I get these:
In mailman's smtp logs:
Oct 22 13:26:17 2012 (22940) xxx smtp to contas for 828 recips,
completed in 1.705 seconds
In mailman's post logs:
Oct 22 13:26:17
On Oct 23, 2012, at 9:28 AM, Kalbfleisch, Gary ga...@shoreline.edu wrote:
As a result of this activity I have changed all lists so that confirmation is
required for all subscriptions, and only list owners can view the list of
subscribers. The confirmations don't actually solve the email
Citando Lindsay Haisley fmouse-mail...@fmp.com:
Hi, when I try to send an e-mail to my list (only one recipient, the list
itself), I get these:
Aren't you creating a loop here? Why are you putting the list itself on
the list as its only recipient? This appears to me to be an invitation
Citando Lindsay Haisley fmouse-mail...@fmp.com:
On Mon, 2012-10-22 at 13:46 -0200, Rodrigo Abrantes Antunes wrote:
Any ideas?
The behavior of Mailman with respect to the number of recipients
specified in any single SMTP transaction is controlled by
SMTP_MAX_RCPTS, which should be less
On 10/23/2012 1:21 PM, Rodrigo Abrantes Antunes wrote:
I've set SMTP_MAX_RCPTS to 250 in mailman and smtpd_recipient_limit to 300
in postfix and I'm still getting these errors.
Did you restart Mailman after setting
SMTP_MAX_RCPTS = 250
in mm_cfg.py?
--
Mark Sapiro m...@msapiro.net
On Tue, 2012-10-23 at 18:21 -0200, Rodrigo Abrantes Antunes wrote:
I didn't set any loop, the list's e-mail obviously isn't a list member,
what I said is that when you want to send and email to the list you put
the list's email in the To: field and that's the only recipient when I'm
sending
On Tue, 2012-10-23 at 13:45 -0700, Mark Sapiro wrote:
On 10/23/2012 1:21 PM, Rodrigo Abrantes Antunes wrote:
I've set SMTP_MAX_RCPTS to 250 in mailman and smtpd_recipient_limit to 300
in postfix and I'm still getting these errors.
Did you restart Mailman
IMHO, a restart of postfix would
* Lindsay Haisley fmouse-mail...@fmp.com:
IMHO, a restart of postfix would probably be in order, too. I know that
many settings in my mail server, courier MTA, require a restart of the
server after changing them in order for them to take effect.
postfix reload
suffices.
--
Ralf Hildebrandt
Lindsay Haisley wrote:
Mark, Brad, etc. I have a question here. Rodrigo says that in his
Mailman smtp log, a SMTP transaction to contas for 828 recipients was
completed in 1.705 seconds
Mailman also reports a _temporary_ failure of 450 addresses. Because
this is a 4xx class error, can one
Mark Sapiro wrote:
The 828 recipients was the entire list, but the list is chunked into
pieces of *at most* SMTP_MAX_RCPTS (default 500) and each chunk is
sent as a separate SMTP transaction. Further, the chunks ar separated
by top level domain such that all .com addresses are in their (set of)
Lindsay Haisley writes:
Take a look at http://areyouahuman.com/.
I just tried their sample. I'd rather face a CAPTCHA! And their
twitter feed reads like spam -- same comments, same apparent author,
different avatar. Not a great start if they want to captcha my lists!
;-)
Seriously, I can
Kalbfleisch, Gary writes:
Note that for the majority of what I have seen in this attack it
is the return email messages that the exploiters desire.
Yes, this is the most important point for Mailman developers, in
fact. Thank you for reiterating it.
I have seen some evidence that these
Rodrigo Abrantes Antunes writes:
Searching google I found that this error isn't related to the number of
users in the list, it occurs because the total number of addresses in the
To: and Cc: headers of the post equals or exceeds
max_num_recipients.
The operational issues have already
On Wed, 2012-10-24 at 11:57 +0900, Stephen J. Turnbull wrote:
Lindsay Haisley writes:
Take a look at http://areyouahuman.com/.
I just tried their sample. I'd rather face a CAPTCHA! And their
twitter feed reads like spam -- same comments, same apparent author,
different avatar. Not a
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