On Apr 28, 2007, at 5:25 AM, Ted Mittelstaedt wrote:
-----Original Message-----
From: Bart Silverstrim [mailto:[EMAIL PROTECTED]
Sent: Friday, April 27, 2007 1:58 PM
To: Ted Mittelstaedt
Cc: Christopher Hilton; Grant Peel; Eric Crist;
freebsd-questions@freebsd.org
Subject: Re: Greylisting -- Was: Anti Spam
On Apr 26, 2007, at 12:15 AM, Ted Mittelstaedt wrote:
There are legitimate technical reasons that someone may want their
mail
to not be greylisted. For example, my cell phone's e-mail
address is
in our monitoring scripts to page me in the event of a server
failure.
I would be pretty pissed off if Sprint suddenly started
greylisting. It
isn't just dumb-ass users making stupid political decisions to
reject
it, although in your case it probably was.
If it is a legitimate mail server, it would be promoted to the auto-
whitelist. Not all mail is constantly greylisted by most intelligent
greylist systems. Only the first few messages would be delayed,
until it is established as legitimate.
That won't work in my case since I generally only have a failure
that causes
a problem which results in paging about once every 3 months or so.
By the
time the pages got through the
greylist it would be at least an hour later after the system had gone
down. That isn't acceptable for a notification system.
What? What do you mean, a failure that causes a problem which
results in paging once every 3 months?
If your mail server tries to contact another mail server and it can't
reach it, you're saying your mail server doesn't retry for an hour?
Even if it does take an hour, the fact that it retried the server on
the other side doing the greylisting means it would be whitelisted
after a couple mails. If you're doing something SO critical that
three or four mails delayed an hour, until you're establishes as a
legit user, means life or death, you definitely should be doing
something that backs up how you communicate with other sites, or
you're not such a big fish that the other sites have already added
you manually to their whitelists like AOL or Amazon mail servers
would most likely be already, or other local ISPs that are known
legit and I just don't feel like waiting for the system to add them
automatically.
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