I have just set up a virtual mail system for a number of domains along with a DNS service and this all works sweetly. Postfix works fine in a non-root user and there is very little if any local traffic (just log reports and stuff!).
One thing that I am nervous about is whether anyone who uses one of the domains is going to send a lot of mail using multiple recipients (To:, Cc: or Bcc: or any other approach). So what I want to do is to take the email message and explode it into a number of individual messages, inserting a small delay along the way. I really don't want my IP to be blocked or blacklisted or anything, nor that of my suppliers. In other words, a mail sent To: a...@dom1.com,a...@dom2.com, Cc: a...@dom3.com, a...@dom4.com Bcc: a...@dom5.com, a...@dom6.com would be split into 6 separate emails either as To:, Cc: or Bcc: as appropriate with a few seconds between them. For sensible use, the user would not notice but if someone wanted to send 1000 emails this way, they would have to wait a long time before they were all delivered. Ideally of course Postfix would refuse to receive any more mails from the user until any backlog had been processed. ISTM that this is a good way of targeting spammers but can it be done in Postfix? I've been searching and googling away but I thought the best thing was to ask some experts! -- View this message in context: http://old.nabble.com/Rewriting-headers-for-multiple-recipients-tp32351888p32351888.html Sent from the Postfix mailing list archive at Nabble.com.
