[Mailman-Users] Block calendar invites to list

francis picabia fpicabia at gmail.com
Mon Nov 18 21:29:29 CET 2013

I'm back again.  Not quite what we were looking for.  Content
filtering stripped out the meeting
request from exchange, but did not discard the mail and the rest of
the email message
was delivered through the list.  We had

Filter Content. Yes
Action to take when a message matches the content filtering rules.
Discard (checked)

On Mon, Nov 18, 2013 at 1:10 PM, francis picabia <fpicabia at gmail.com> wrote:
> OK, I find the probable answer a few minutes later.  Trying Content
> filtering now.
> I'm pretty sure this is what I was looking for.
> On Mon, Nov 18, 2013 at 12:50 PM, francis picabia <fpicabia at gmail.com> wrote:
>> We have an issue where sometimes a person creates a calendar
>> item for an event, and canceling the item causes email to
>> be delivered to the list.
>> It seems the solution could be looking at MIME header tags
>> indicating it is a meeting invite, and we could block all
>> emails containing:
>> ^Content-Type: text/calendar
>> Placing that in Spam Filter rule does not capture the email,
>> likely because it isn't in the top header section, but within
>> the MIME encoded sections.
>> Does this problem have a known solution?  Google didn't
>> find it and I don't see "text/calendar" in my archives of
>> the mailman mailing list.

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