Reject mail TO a specific address

[chmac]

The majority of spam I get comes to a few selected addresses, info@, sales@, etc. As I use a catch-all alias, all of these addresses are delivered.

I'd like to reject mail that received for a few specific addresses. So any mail that is being sent to sales@, info@, and one or two others, would be rejected before being received, but my catch-all alias would still work for all other aliases.

Despite extended searching here and on the postfix mailing list, I can't find anywhere that explains how this works. It's quite easy on sendmail, but I can't find anything that explains it on postfix. I'm sure it's simple of course...

Thanks in advance - Callum.

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[millap]

If you are using local delivery then the main.cf entry alias_maps = maptype://path/to/file is what you need.

If you are delivering to the network (eg your postfix install is a relay to an internal host like MS Exchange) then you should use

relay_recipients = maptype://path/to/file

For example:

Local delivery:
alias_maps = hash:/etc/aliases
(when you change the file do 'newaliases && postfix reload' to update postfix)

Network delivery:
relay_recipients = hash:/etc/postfix/relay_recipients

You can generate relay recipients automatically if you use an internal AD domain by using Chris Covingham's excellent getadsmtp script.

http://www-personal.umich.edu/~malth/gaptuning/postfix/

Hope that helps.
millap