[Dovecot] Please solve my query

[Uldis Pakuls]

bhagwat swarup wrote:
> hi
> my question is
> Start a POP3 server on rhel5 with a matching criteria
> 1) user jack must get mail
> 2 Allow your network lw.com
> 3)my133.org domain can not access your server
>
> Thanks And Regards
> Bhagwat Swarup
> NH India Ltd
>
>   
Usual way to configure access to server (in this case - pop3 service) is
setting up firewall rules.
Reverse lookup of connecting IP anyway is useless - user can configure
mail client anywhere in the world. POP3 protocol don't implement any
host based rules like SMTP "HELO" restrictions.
If you want restrict access  - only one way is allow/deny appropriate
IP/Netblocks. It is firewall job.

Uldis