On 20/02/2021 18:02, Shawn Heisey wrote:
On 2/20/2021 8:50 AM, Markus Schönhaber wrote:
I consider it a better idea to filter mailing list messages by their
List-ID header.
I agree with Markus. It's what I do. This works well:
if header :regex "list-id" "solr-user.lucene.apache.org"
{
fileinto "asf.solr-user";
stop;
}
I do not know if List-ID is common to all mailing list software, but
even if it's not, there should be something available in the message
headers that you can use.
It's not, but it's fairly common. A few years ago someone posted a
strategy for procmail that handled almost any kind of mailinglist
software. I've translated that to the following sieve script (which, now
that I look at it, could probably do with a bit of optimisation):
# split out the various list forms
# Apparently, mutt-users has some odd format, so handle it specially.
if exists "list-post" {
if header :regex "list-post" "*([a-z_0-9-]+)@?" {
set :lower "listname" "${1}";
fileinto :create "${listname}";
} else {
keep;
}
stop;}
# Smartlist
elsif exists "x-loop" {
if header :regex "x-loop" "^\\s*(a-z_0-9-]+)@?" {
set :lower "listname" "${1}";
fileinto :create "${listname}";
} else {
keep;
}
stop;
}
# poorly identified
elsif envelope :contains "from" "owner-" {
if envelope :regex "from" "owner-([a-z_0-9-]+)-outgoing@" {
set :lower "listname" "${1}";
fileinto :create "${listname}";
} elsif envelope :regex "from" "owner-([a-z_0-9-]+)@" {
set :lower "listname" "${1}";
fileinto :create "${listname}";
} elsif header :regex "Sender" "owner-([a-z_0-9-]+)@" {
set :lower "listname" "${1}";
fileinto :create "${listname}";
} else {
keep;
}
stop;
}
# other poorly identified
elsif envelope :contains "from" "-request" {
if envelope :regex "from" "([a-z_0-9-]+)-request@" {
set :lower "listname" "${1}";
fileinto :create "${listname}";
} else {
keep;
}
stop;
}
Thanks,
Shawn