[BlueOnyx:22894] Re: ban e-mails from *.icu domains

[Dirk Jessel]

Hi,

in order to manage spam from some tlds, we have personal rules like this:

From: header     *.site, *.bid,*.icu,*.art,*.top,*.dz     10

Dirk


Am 09.05.2019 um 09:24 schrieb Meaulnes Legler @ MailList:
> hello
>
> lately the Mail Delivery Subsystem gets flooded with e-mails sent to 
> none existing addresses, all ending in .icu
>
>>  ----- The following addresses had permanent fatal errors -----
>> <dimension at stylegive.icu>
>>     (reason: 550-5.1.1 The email account that you tried to reach does 
>> not exist. Please try)
>
> cat /var/log/maillog | grep "\.icu" lists a plethora of domains all 
> ending in «.icu»
>
> a good practice I use to ban recurrent e-mail servers sending their 
> junk is to add their domain address in the GUI in the list at
> Server Management > Email > Advanced > Block Email From Hosts/Domains
>
> this works quite fine since entering for instance «autobiz.com» bans 
> also «campaigns-autobiz.com» as also «sales-autobiz.com».
>
> But I can't enter a regular expression like *\.icu or [a-z]\.icu
>
> Any ideas how I can ban all .icu domains?
>
> Thank you and best regards
>
> _⌢_  Meaulnes Legler
> '¿') Zurich, Switzerland.
> `-´  +41¦0 44 260-1660 fax:-1661
>
>
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