subject line not prefixed

[Alexander Wirt]

On Tue, 26 Apr 2016, Michael H wrote:

> Hi Mailing list owner,
> 
> Could you amend the configuration for the mailing list to include
> something in the subject line, like maybe [amavis-users]?
> 
> This is the only mailing list I'm on where my filters have difficulty
> pinning all of the messages and it's a nuisance.
You should use the standard List-ID header:
List-Id: "General support and discussion mailing list for AMaViS
 \(amavisd-new\)" <amavis-users.amavis.org>

Alex