[Mailman-Users] header field: Sender

[Mark Sapiro]

On 3/27/16 10:08 AM, willi uebelherr wrote:
> 
> one question. If the Sender-field exist and mailman create a new
> Sender-field-line, then he have to delete the old one, or not?


Yes, Mailman deletes any existing Sender: headers before adding one.


> And maybe, this is true also for all other header fields, what mailman
> create?


Some yes and some no. E.g. Errors-To: will be replaced. Depending on
list settings, a new, merged, Reply-To: or Cc: will be created and the
original replaced, but headers like X-BeenThere: X-Mailman-Version:,
etc., will just be added.

-- 
Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan