SASL authencation failed by postfix

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trungtien1571992
Posts: 3
Joined: Sat Jul 29, 2017 4:42 am

SASL authencation failed by postfix

Post by trungtien1571992 »

Hi all,

I need to block all IP address, they're connect to my mail server by log "SASL authencation failed"
Maybe i can postfix or not? This configuration not work.

zimbraMtaSmtpdErrorSleepTime 1s
zimbraMtaStpdSoftErrorLimit 10
zimbraMtaSmtpdHardErrorLimit 20

Can you explain this?
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