On Sun, Feb 26, 2006 at 02:56:10PM -0500, Jeff Rife wrote:
This is why I turned to this group of experienced mail admins. I need
a way to justify occasionally delaying good e-mail to people who have
already said that occasionally *blocking* good e-mail (and thus
*really* delaying it) is
On Sun, Feb 26, 2006 at 10:48:52AM -0500, David F. Skoll wrote:
However, I've also been surprised somewhat that spammers haven't reacted
to greylisting still. I thought the technique would be invalid by now
because the minute ratware/malware starts properly following the 4xx
rules, the
Jeff Rife wrote:
This is why I turned to this group of experienced mail admins. I need
a way to justify occasionally delaying good e-mail to people who have
already said that occasionally *blocking* good e-mail (and thus
*really* delaying it) is acceptable.
Now that's an interesting
Jeff:
In my testing, I found that greylisting had too many false-positives causing
important and even critical mail to be unacceptably delayed. Therefore, I
agree with the PHBs at your work and that greylisting should be a last
resort if other methods fail because you're only argument IMO is
Kevin A. McGrail wrote:
In my testing, I found that greylisting had too many false-positives
causing important and even critical mail to be unacceptably delayed.
Really? That's quite the opposite of my experience.
Greylisting is good IF you turn off greylisting for hosts known to retry
(we
In my testing, I found that greylisting had too many false-positives
causing important and even critical mail to be unacceptably delayed.
Really? That's quite the opposite of my experience.
Greylisting is good IF you turn off greylisting for hosts known to retry
(we do that for 40 days: If a
On Sunday 26 February 2006 05:28, Jeff Rife wrote:
But, I absolutely can't get the PHBs at my work to approve of a full
install there (currently I just greylist anything addressed to me)
because critical e-mail might be delayed. After much thought, I
realize there is no way I can fight this
Kevin A. McGrail wrote:
I just don't know if that 1 email that got delayed X number of hours
from a non-whitelist host wouldn't be the proverbial spine breaking
straw and have a feeling it would occur here and greylisting would have
to be 100% removed because of 1 FP email delayed.
If that's
Although email quite often is comparable to instant messaging, email was
not
designed to be instant. Hence delays can and will happen.
Yes, but when the delays are in your control to mitigate, you better be able
to CYA when an important email is delayed. I've had people upset that email
was
On Sunday 26 February 2006 18:10, Kevin A. McGrail wrote:
Although email quite often is comparable to instant messaging, email was
not
designed to be instant. Hence delays can and will happen.
Yes, but when the delays are in your control to mitigate, you better be
able to CYA when an
On 26 Feb 2006 at 11:11, Kevin A. McGrail wrote:
Good Point. The use of a multi-month whitelist for hosts known to retry
properly to disable greylisting seems like an excellent fix that would
probably solve 75% of the issues I was detailing previously (hazarding a
guess here).
I just
After installing milter-greylist on my personal e-mail server,
identified spam and viruses dropped dramatically (down to between 10-
20% of previous levels).
But, I absolutely can't get the PHBs at my work to approve of a full
install there (currently I just greylist anything addressed to me)
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