While a few here think this is god's gift to mankind, it's ONE way to do
it...
On 03/25/2015 05:23 PM, Dave Wreski wrote:
I hoped I could ask for a little more of an explanation.
I'm willing to rely on RBLs and postscreen to make outright reject
decisions, but I'm not sure I want spamassassin/amavisd doing that.
Silently quarantining viruses and spam is how it's been done here for a
while.
So this method eliminates the content_filter configuration in postfix,
where the messages are queued.
I can see this new method being suitable for smaller networks, but
without any queuing capability, how does it scale?
Postini was prequeue, inline with target server... BUT.. what juice did
they use in the background.... I don't know. Certainly not SA.
Also, if there is even a temporary interruption in amavis' ability to
operate, mail will be rejected.
afaik, on fail accept or 450 - configurable
Do large scale operators implement this proxy filter approach, and if
so, aren't there any problems with processing times?
There are some large service providers doing but they use customized
MTAs and no fat SA/Perl regex parties.
Also, in a well connected world it works fine, but what happens with
sluggish connections from Indonesia or Bolivia ? Lord knows...
It seems the real advantage to doing it this way is the ability to
quickly reject mail not already rejected by zen/postscreen/etc. Is that
really such a big benefit?
Depends... [1] no matter how loud ppl get about the benefits (and trust
me, they're persistent) only you can decide if it will work for your
traffic. Trust YOUR judgement only - not the rabid advocate's
And not even all spam would be rejected - only those you felt were over
a predetermined threshold, correct? Why not just quarantine it all,
giving the user the ability to determine if they want to go looking for it?
See [1]
Both methods have their advantages - it always depends on what your
user's expect/wish/hope for AND not to be forgotten: How many support
tickets could all the rejects trigger?
Depending on your user base, it could be more than you wish for.
In the end, trust your gut feeling and take what lets you sleep best.
Nobody will thank you for gettting high pressure and a stroke.
Axb
