When using Custom Templates to automatically create new filters address
variables such as %from(domain)% should gather all data when multiple emails
aret dropped - similar to the built in filter template "Group (collects senders
of multiple mails)". 

At the moment in Custom Templates only the first Email is processed.

Created an attachment (id=8472) [details]
3.6 prerelease 7

This version supports gathering header information from multiple emails, so it
could for example be used for collecting domains when using the %from(domain)%
variable.

This doesn't currently guard against:
 # duplicate entries   (which the group filter does)
 # adding your own address / domain to the list (which most filter templates
do, in order to avoid accidentally filtering out ones own emails)

So this means the resulting new filters should be overlooked judiciously

Created an attachment (id=8473) [details]
3.6 prerelease 22

# Added a check against duplicates.
# Added omission of own emails and email domains for Email address fields
(Sender, To, Cc, ToOrCC, AllAddresses) with the operators "contains" and
"Endswith" to avoid bad side effects like archiving all ones own emails. This
only happens if there are more than one emails selected.

*** Bug 26553 has been marked as a duplicate of this bug. ***

Feature released 16/06/2018 in version 3.6