Disable logging for localhost

[André Rodier]

Hello Everyone,

I am using Zabbix to monitor my Dovecot server, and my logs are filled 
with lines like this:

> Oct 21 15:04:46 osaka dovecot[1256]: pop3-login: Aborted login (no auth 
> attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, secured, 
> session=<bWd0nr14SuF/AAAB>
> Oct 21 15:05:29 osaka dovecot[1256]: imap-login: Aborted login (no auth 
> attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, secured, 
> session=<MlAGob147Jd/AAAB>

How can I disable logging these actions from 127.0.0.1?

Thanks,
André

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