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Koopmann, Jan-Peter wrote:
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<pre wrap="">Just to let you know, all google servers are hopeless at handling
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<pre wrap=""><!---->email
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<pre wrap="">to greylisting systems.
You can expect BIG delays as they don't maintain state on smtp queues.
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Agreed. Just for the record: This is not really a google problem but a
problem coming from inefficient greylisting implementations. Have a look
at BarricadeMX. Their greylisting implementation does not suffer from
this particular problem.
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<pre wrap="">Typically a greylisting system admin would whitelist google servers to
get round their problem, however, as google is in the top 100 list of
spam sources whitelisting their mail relays is a very bad idea....
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Or use better greylisting algorithms.. :-)
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You can of course greylist/whitelist based on domain but since the
number of organisations that actually have this type of problem is very
small, I really don't consider it my problem, I am very happy indeed
for google mail to be delayed... and make no excuses for it in my
client base...<br>
<br>
Its not down to a lack of efficiency in greylisting algorithm, per se,
as I *actively force* the ip address of the sending server to be part
of the greylisting process. If you change servers in your outbound
queue then you can expect to be delayed again.<br>
<br>
I don't use the snertsoft filter, I used a personally modified version
of this<br>
<br>
<a class="moz-txt-link-freetext" href="http://hcpnet.free.fr/milter-greylist/">http://hcpnet.free.fr/milter-greylist/</a><br>
<br>
across my enterprise, one particularly nice feature is that it allows
whitelist syncing across multiple servers, so once one server in the
group has whitelisted a server, sender, recipient triplet then the
others have it too.<br>
<br>
Regards<br>
<br>
Pete<br>
<br>
<br>
<br>
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