X-Greylist header

Several other greylist filters (Postgrey, the sendmail milter, maybe more) are adding this header to the mail they process. Here is what the sendmail milter does (from their web site):

"Each message that went through the MTA has a X-Greylist header line, which report what milter-greylist did: message accepted immediately because the sender IP is white-listed, or because the recipient is white-listed. And if the message has been delayed, milter-greylist will report how long it had to wait because of greylisting before been accepted."

Would you be interested in added this feature to gps? I'm not sure that I agree with handing out whitelist information, a simple "delayed for nnn seconds" would be fine with me. Presumably, nnn would be zero for whitelist cases :-)

Thanks -- Steve

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