Hi, I have a Postfix mail-receiving server.
I have to filter the received e-mail according to the logic: 1. Only mails sent to the recipient registered on my email server would be accepted. 2. Mails sent to the recipient registered on my e-mail server would be rejected if any other recipient of the mail has been specified in To, CC or BCC header. Now I have two options: 1. Write a mail-filter (milter), parse the incoming headers of the mail and implement the logic (I know how to do this). 2. Using custom postfix feature as listed here: http://www.postfix.org/BUILTIN_FILTER_README.html I have very less idea of option 2, and Will I be able to achieve my intended logic by option 2? If yes please give some good examples. Also, which option would be efficient regarding performance and memory usage wise? Thanks in advance Ashish Sharma
