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From: David Jones <djones@ena.com>
To: Spamassassin List <users@spamassassin.apache.org>
Subject: Re: Filtering outbound mail
Thread-Topic: Filtering outbound mail
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Date: Thu, 16 Feb 2017 15:14:02 +0000
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archived-at: Thu, 16 Feb 2017 15:15:24 -0000

>From: Reindl Harald <h.reindl@thelounge.net>
>Sent: Thursday, February 16, 2017 8:55 AM
>To: David Jones; Spamassassin List
>Subject: Re: Filtering outbound mail
=A0  =20
Am 16.02.2017 um 15:49 schrieb David Jones:
>> From: Christian Grunfeld <christian.grunfeld@gmail.com>
>> Sent: Thursday, February 16, 2017 8:29 AM
>> To: Spamassassin List
>> Subject: Re: Filtering outbound mail
>
>> Why not rate limiting? I think everyone is doing it....I do...
>
>> Cluebringer quotas can track one to one, one to many and
>> many to one (botnets) in both directions (as sender or recipients)
>
> Many of the SMTP sending software that my customers
> use are not full MTAs with queuing capabilities so some email
> would be lost if I rate limited

>then they have no relieable delivery anyways, what when on one side or=20
>on a router between packet loss or restarts of any network devcies are=20
>happening?

I agree.  We are doing good just to get them to send through our mail
relays to get reliable delivery to the Internet.  They understand the risk
of network issues but they don't always understand how to setup proper
mail routing.

>a simple postfix there with a queu and SASL forwarding to your server is=20
>strongly recommened

Most run Windows servers so I try to get them to setup an hMailServer
as a simple internal mail relay that smarthosts to my servers when I can.

We have a large number of customers all over the United States so this
would be a full time job for multiple people if we wanted to do this
correctly everywhere.  I do the best I can when I learn of problems
escalated to my team.


    =