Alessio,

remote 1.2.3.4 { }

This isn't supported. You can only set the same max connection for all userips.

protocol imap { mail_max_userip_connections = 100 }

The conf above will act :

• 1.2.3.4's max connections will be set to 100 when using imap connection.
• 1.2.3.5's max connections will be set to 100 when using imap connection.
• and so on. Every connection to imap will have max connection limit, 100.

If you want to limit max connections only for a specific ip, you might want to do that on your firewall.

-----Original Message----- From: dovecot dovecot-bounces@dovecot.org On Behalf Of Alessio Cecchi Sent: Wednesday, April 14, 2021 5:39 AM To: Dovecot Mailing List dovecot@dovecot.org Subject: mail_max_userip_connections per remote IP not working

Hi,

I'm tryng to set a specific mail_max_userip_connections for a remote IP (webmail IMAP software), but it seems not working:

remote 1.2.3.4 { protocol imap { mail_max_userip_connections = 100 } }

and also this isn't working

remote 1.2.3.4 { mail_max_userip_connections = 100 }

I insert it at the end of 20-imap.conf file.

Is something wrong or is not supported?

I'm running dovecot 2.3.14.

Thanks

-- Alessio Cecchi Postmaster @http://www.qboxmail.it https://www.linkedin.com/in/alessice