> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abusix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Exim

To add Guardian Mail to your Exim installation:

**Single configuration file**

If you are using a single configuration file, open *exim.conf* and find the “*acl\_check\_rcpt:*” section, and add:

`deny message = $dnslist_text\
dnslists = <APIKEY>.combined.mail.abusix.zone`

Replace \<APIKEY> with “**Your API key”** from your account in app.abusix.com.

Then restart Exim.

**Split configuration file**

If you are using Exim split configuration, then open \_/etc/exim4/conf.d/acl/30\_exim4-config\_check\_rcpt *and find the*“.ifdef CHECK\_RCPT\_IP\_DNSBLS” \_ section and add the following after the *“.endif”*:

```
deny
    dnslists = <APIKEY>.combined.mail.abusix.zone
    add_header = X-Warning: $sender_host_address is listed by Abusix ($dnslist_value: $dnslist_text)
    log_message = $sender_host_address is listed by Abusix\n$dnslist_text
```

Replace \<APIKEY> with “**Your API key”** from your account in app.abusix.com.

Then restart Exim.