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Question banning IPs Mailserver /services in the firewall

shopuser

Basic Pleskian
Can i block the iP Range for one from this 3 services ?

SMTP-Server (Delivery port) Incoming of all allow
SMTP-Server (for e-mail send) Incoming of all allow
IMAP-Server (for e-mail delivery) Incoming of all allow

I like to restrict the IP Range to login to mail mail account ( with thunderbird, )
from home and my local Mobile network .
i like to block to login and scan from other ips / countys ?

for example block this scanning:

Mar 21 08:26:36 server courier-imapd: Connection, ip=[::ffff:178.254.174.196]
Mar 21 08:26:45 server courier-imapd: LOGIN FAILED, method=PLAIN, ip=[::ffff:178.254.174.196]
Mar 21 08:26:47 server courier-imaps: Connection, ip=[::ffff:217.17.38.245]
Mar 21 08:26:47 server courier-imaps: LOGIN FAILED, user=x@xx, ip=[::ffff:217.17.38.245]
Mar 21 08:26:54 server courier-imapd: Connection, ip=[::ffff:114.7.112.118]
Mar 21 08:27:02 server courier-authdaemon: authpsa: short mail addresses are not allowed, got 'xx'
Mar 21 08:27:02 server courier-imapd: LOGIN FAILED, method=PLAIN, ip=[::ffff:114.7.112.118]

kind regards
 
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