Re: [exim] How reject HELLO with my IP

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Autor: Jakob Hirsch
Data:  
A: Frank Elsner
CC: exim-users
Assumpte: Re: [exim] How reject HELLO with my IP
Frank Elsner wrote:

>>    drop  message = "REJECTED - Bad HELO - IP address not allowed [$sender_helo_name]"
>>          condition = ${if isip {$sender_helo_name}}
> An IP is definitly allowd, 


Only if in square brackets [], so isip is a good check. Most (if not
all) spammers with "EHLO x.x.x.x" use the IP of my host, btw, but I
don't check for that explicitely.

> but it must be the IP of the sendung host.


My MUA (Thunderbird) uses the private IP inside the NATed network. I
don't know a way to change that.

>        condition = ${if eq {${lc:$sender_helo_name}}{${lc:$primary_hostname}}\


You could use "eqi" instead of "eq ... lc...".
And the following is more effective, I think:

condition = ${if !eq {$interface_address}{$sender_host_address}}
condition = ${if match_domain {$sender_helo_name}{+local_domains}}