[GTALUG] Testing from a "+" email address.

[Jamon Camisso]

On 2014-08-18 1:47 PM, Myles Braithwaite wrote:
> On Mon, Aug 18, 2014 at 1:33 PM, Giles Orr <gilesorr at gmail.com> wrote:
>> I registered with a "+" in my gmail address earlier today.  It appears to be
>> working fine as I clearly received your message ...
> 
> The problem is with sending the email. If you setup with
> <alex+gtalug at example.org> you have to send using that as while or get
> caught in the moderation and a moderator has to approve your second
> email for sending only (not receiving) and will not show up in the
> membership area of mailman.
> 
> The issue I'm trying to figure out is in the scenario where an email
> address get hijacked and starts sending mail to the list. How can we
> modorate that email if it's not in the membership area of mailman.
> 
> Working on it over here: <https://github.com/gtalug/infrastructure/issues/30>.

For a use case like this where there are a few thousand subscribers, is
it worth supporting sub-address sending, where it has not been supported
since the inception of the list (at least I think this is the case).

Perhaps limit subscriber addresses using ban_list and then it is a
non-issue.

Admittedly, I like sub-addressing and use it everywhere. An option to
make that work would be to use an umbrella list with
accept_these_nonmembers. The process would be something like:

user+subaddress at domain.com signs up to subaddress specific list, with
their subaddress.

user at domain.com signs up to top level list with normal address.

Now, with accept_these_nonmembers including the subaddress list of
subscribers, the top level list will accept a message from
user+subaddress at domain.com.

I'm not sure how to control duplicate messages, or what the gain is here
since the user could just subscribe to the top level list with their
subaddress, but perhaps there's some moderation bits that could be set
to limit delivery?

Just a thought, Jamon