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
<https://www.iana.org/assignments/pop3-extension-mechanism/pop3-extension-mechanism.xhtml>
I read that the pop3 capability "LOGIN-DELAY" exists. But it seems
that
dovecot does not offer this? Why?
Kind regards
Markus