detect spamming sript

Pirmiausia, žiūrėti mail log:
1829AB7A07E3: uid=48 from=<aaa@bbb.lt>
Pirmas stulpelis - mail quue id, antras - proceso id, kuris siunčia.

php.ini turi būti nustatyta:  mail.add_x_header = On

postcat -q <ID>      - pagal mail que id pažiūrėti laišką

postcat -q DA5E8647235C | grep X-PHP-Originating-Script

X-PHP-Originating-Script: 45:badmailer.php

The number 45 is the UID, which is the Linux user ID that ran the script

postcat -q DA5E8647235C | grep sasl_username

Resend messages in the queue:   postqueue -f

Pastaba: susitvarkus, paleisti   postsuper -d ALL  

nes kitaip dar  tukstanciai padetu laisku gali buti.

Papildomai, iš išorės galima blokuoti SMTP (jungiantis iš servo rašyti localhost): 
iptables -A INPUT -p tcp -s localhost --dport 25 -j ACCEPT 

pipe email to script

https://www.virtualmin.com/node/18059
https://www.virtualmin.com/node/13762
https://serverfault.com/questions/258469/how-to-configure-postfix-to-pipe-all-incoming-email-to-a-script
https://stackoverflow.com/questions/4321159/postfix-and-sending-incoming-emails-to-script-instead-of-sending

http://php-mail-client.github.io/Client/
https://code.google.com/archive/p/imapcopy/  bei imapsync

good webmail client

https://www.rainloop.net/
https://afterlogic.org/webmail-lite