How to install dkim-filter by apt-get?

Question

In tutorial, DKIM is installed by

sudo apt-get install dkim-filter

I wonder why on my Ubuntu 10.10, I am unable to do this as I receive error of

E: Unable to locate package dkim-filter

How can I install DKIM by apt-get?

Answer 1

Maybe because it is not there anymore in 10.10:

Package "dkim-filter"


WARNING: the "dkim-filter" package was deleted from this repository


Name:   dkim-filter

Description:    
DomainKeys Identified Mail (DKIM) Milter implementation 
Implements a Sendmail Mail Filter (Milter) for the DomainKeys 
Identified Mail (DKIM) standard. DKIM provides a way for senders to 
confirm their identity when sending email by adding a cryptographic 
signature to the headers of the message.

The dkim-milter implements both signing and verification.

Latest version: *DELETED*
Release:    maverick (10.10)
Level:  base
Repository: universe
Head package:   dkim-milter

However I've found this googling a little bit. Just download the .deb file an install it.