On 6/1/2015 8:38 PM, Daniel Miller wrote: > I don't think that's the case - the users in question submit using > Thunderbird. > > -- > Daniel >
Yes, that's how Tbird requests a read receipt. You would use something like: /etc/postfix/main.cf: smtpd_command_filter = pcre:/etc/postfix/command_filter /etc/postfix/command_filter: # remove return receipt requests for example.com if /example\.com/ /^(RCPT\s+TO:\s*<.*>.*)\s+NOTIFY=\S+(.*)/ $1 $2 endif The above is based on the examples given in http://www.postfix.org/postconf.5.html#smtpd_command_filter -- Noel Jones > 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