IP reputation ad sender score check

Sender score:
https://www.senderscore.org/get-your-score/

IP reputaion:

https://talosintelligence.com/reputation_center


https://www.ers.trendmicro.com/reputations


https://ipremoval.sms.symantec.com/



### fail2ban unban
fail2ban-client set dovecot-iredmail unbanip 192.168.2.2




## Search any text from all files under a directory

* we wants to search a text/word named "Searching Text" from many files under location /var/www/html

find /var/www/html/ -type f -exec grep -H 'Searching Text' {} \;