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Note: This is only applicable to RHEL/CentOS.
/etc/amavisd/amavisd.conf
:$banned_namepath_re = new_RE(
# Unknown binary files.
[qr'M=application/(zip|rar|arc|arj|zoo|gz|bz2|octet-stream)(,|\t).*T=dat(,|\t)'xmi => 'DISCARD'],
...
);
|octet-stream
in 3rd line. After modified, it's:$banned_namepath_re = new_RE(
# Unknown binary files.
[qr'M=application/(zip|rar|arc|arj|zoo|gz|bz2)(,|\t).*T=dat(,|\t)'xmi => 'DISCARD'],
...
);
# service amavisd restart
/etc/fail2ban/filters.d/postfix.iredmail.conf
or
/usr/local/etc/fail2ban/filters.d/postfix.iredmail.conf
(on FreeBSD), find
below line under [Definition]
section: lost connection after AUTH from (.*)\[<HOST>\]
Update above line to below one:
lost connection after (AUTH|UNKNOWN|EHLO) from (.*)\[<HOST>\]
Restarting Fail2ban service is required.
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