On 12/14/09 4:24 PM, Jaroslaw Grzabel wrote:
Martijn de Munnik wrote:

http://www.postfix.org/ADDRESS_VERIFICATION_README.html#caching


Hi Martin,

Thank you for your reply.

The only problem with that database is that if customer add some users
into his machine then database will always reject that email... let's
say for example:
somebody is spamming address like j...@domain.com
Obviously jon doesn't exist. But after a week company hire Jon and
creates an email for him. What postfix does ? Reject all messages until

It rejects mail until cache refresh time is out.

Possibly, you can also disable cache but it causes some performance loss..

--
Eero

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