Re: Dovecot pop3 feature

[A. Schulze]

Am 22.05.2017 um 14:07 schrieb Markus Eckerl:
> Is it possible to send a pop3 "LOGIN-DELAY" if the customers last login is 
> only a few seconds away? 

you may try postlogin script voodoo:
https://wiki.dovecot.org/PostLoginScripting#Last-login_tracking
https://wiki.dovecot.org/PostLoginScripting#Denying_connection_from_some_IP.2FUser

Andreas

Dovecot pop3 feature

[Markus Eckerl]

Hi all,

we are using dovecot since several years without any problems or trouble.

Now we are having trouble with a few of our customers - they are trying 
to fetch their emails every few seconds (3-5!). These customers are 
using Microsoft Exchange Server and also all of these customers are 
cared by the same IT Professional...


Is it possible to send a pop3 "LOGIN-DELAY" if the customers last login 
is only a few seconds away? A simple firewall rule for rate limiting is 
not possible because most of them are business customers and they are 
connected using NAT.


In RFC2449 
 
I read that the pop3 capability "LOGIN-DELAY" exists. But it seems that 
dovecot does not offer this? Why?


Kind regards

Markus