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...fter RCPT TO. So the server has to accept mail first before it can scan its header and/or body, and would send out DSNs on rejection at this stage, probably causing backscatter as well. I don't understand why this problem of ignoring data response codes even exists. It would be so much more practible to reject spam immediately after the body was scanned, i.e. after the DATA command, than to send out these DSNs. Or does this issue no longer exist these days? /andreas

I am sick of this gmail spam. Does anyone know a solution where I can do something like this: 1. received email from adcpni444 at gmail.com 2. system recognizes this email address has been 'whitelisted', continue with 7. 3. system recognizes as this email never been seen before 4. auto reply with something like (maybe with a wait time of x hours): Your message did not receive the