North American Network Operators Group|
Date Prev | Date Next |
Date Index |
Thread Index |
Author Index |
Re: 18.104.22.168 (22.214.171.124 /24) blocked by bellsouth.net for SMTP
- From: Joe Maimon
- Date: Sun Sep 25 19:11:45 2005
No, what will happen more and more is that parties who forward email
will have to make a "best effort" to ensure that it is not spam.
Yes, this is quite clearly the case; there are dozens of mutual customers
who have forwarding rules setup. We are not generating Spam to send to
Bellsouth; it's coming from somewhere else and then being forwarded.
I imagine that at some time in the future, forwarding e-mail might become
impractical, if receiving systems insist on parsing it as originated or
Meaning a policy "unfiltered email does not get fowarded to external
Its pretty simple. Its garbage and its coming from you. Block.
Happens to be it is not trivial (currently probably rarely possible) to
guarantee that email is forwarded, rather than simply originated with
Hopefully this will generate/increase a positive network effect for
aggressive spam filtering, from blocklists, graylists, content filtering
and so on.
Unfortunately the network effect is likely not to be a pleasant
experience for many providers, as you have recently found out.
Customers may be entitled to request complete unfiltered access of their
email account to the world, but they are not entitled in this day and
age to expect that to carry over into a privelege for provider A to dump
crap into provider B without a prior arrangement/understanding between
provider A and B.
This is a problem. Headers would go a long way to disabling the
forwarding instances and/or mandating strict filtering for those customers.
This the first I've heard of BS having a 50/5 threshold limit.
Bellsouth has given us no statistics, no logs, no headers, not even a
timeframe for their vague claims. We can clearly see from our side that we
are not generating nor relaying Spam. But our customers can no longer
choose to forward their e-mail to Bellsouth. It seems that Bellsouth is
restricting its customers.
That being said, assuming you have told bellsouth you were working on
eliminating raw forwarding they should have worked immediately to lift
the block and give you the benefit of the doubt.
In the absence of retained technical evidence, a "easy out" blocklist
and an "easy in" whitelist should be the norm.