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MDaemon Email Server 24.5

DNS-BL Hosts

Enable DNS-BL queries

Activate this option if you wish to check incoming mail against DNS Block Lists. MDaemon will query each listed host when performing a DNS-BL lookup on the sending IP address. If a host replies to the query with a positive result, MDaemon can flag the message or refuse to accept it, depending on which options you have enabled on the DNS-BL Settings screen.

Remove

Select an entry from the DNS-BL service list and click this button to remove it from the list.

DNS-BL host

If you wish to add a new host to be queried for block listed IP addresses, enter it here.

Test

Enter a host into the DNS-BL host option and click this button to test it by looking up 127.0.0.2.

Message

This is the message that can be sent during the SMTP session when an IP address has been listed by the corresponding DNS-BL host listed above. This message corresponds to the ...and respond with 'Message' rather than 'user unknown' option located on the DNS-BL Settings screen.

Add

After entering a host and return message, click this button to add it to the DNS-BL hosts list.