I don't think that's the case - the users in question submit using Thunderbird.
-- Daniel June 1 2015 5:46 PM, wie...@porcupine.org wrote: > Daniel Miller: > >> Is there a way of removing return-receipt requests from internal >> senders for a particular external recipient? ?Or does this require >> a separate tool/script to pass sent messages through? > > If the request is made in SMTP, like this: > > RCPT TO:<recipient@rcpt-domain> NOTIFY=SUCCESS,... > > Then it is possible to fix this with smtpd_command_filter. > http://www.postfix.org/postconf.5.html#smtpd_command_filter > has examples. > > Let me know if you need help with this solution. Explaining this > takes time, and I don't want to do it if your problem is something > else. > > Wietse
