On 8/21/2015 12:20 PM, J. Roeleveld wrote: > Hi all, > > There are occasions I need to send emails asking for "read receipts". > Some MUAs allow this to be enabled when necessary, defaulting to "off". > > However, some have a global setting that needs enabling/disabling (K9mail on > Android is one of them)
Submit a feature request for K9mail and any other mailers you use that don't support this. > > With these on, I tend to annoy people on mailing lists. Is there an easy way > to filter out certain tags from emails when the recipient is a mailing list? > > I have the email addresses of the mailing lists and the tags I need to be > able > to remove are: > X-Confirm-Reading-To: > Return-Receipt-To: > > If this is already documented somewhere, can you please point me in the right > direction? I wasn't able to find anything using google. (Probably missing the > right search-string) To alter a header based on the recipient, you'll need a milter or proxy filter. Possibly milter-regexp can do this. To filter out DSN NOTIFY=SUCCESS options, maybe you can use use a variation of the examples in http://www.postfix.org/postconf.5.html#smtpd_command_filter -- Noel Jones