What program do I need?

vi /etc/aliases ?

catchalls are a really, really bad idea

Not really, you're just going to get a metric crapload of spam, because they won't even have to try to guess a correct mailbox on your domain.

which is why they're a really, really bad idea

It doesn't break anything. It doesn't violate any RFCs. It isn't a bad idea, just a stupid one.

so because it's not against RFC's, it can't be a really, really bad idea? whatever :roll:

Bad != Stupid

A bad idea is one that backscatters or open relays or one of those bad things.

A stupid idea is one that just becomes a PITA when you need to do content filtering to keep your head above the spam.

So the rest of us are required to follow your definitions. Okay…

OH NO NOT SPAM!

who cares.

Can anyone reccomend a good mail program for Ubuntu that can do this?

I was using Google Apps but they require you to pay for the ability to send mail via outlook.

I'm not sure catchalls are so bad.

I use one; that way when I register at foo.com with foo@mydomain, I don't have to remember to add an alias for each and every site. If one starts receiving spam, I can always just route it to /dev/null.

I also use greylisting and require a valid HELO/EHLO and a FQDN for MAIL FROMs. Of the ~500 spam emails I get a day, all but 1-3 of them are blocked for failing one of these tests.

@craven:

I was using Google Apps but they require you to pay for the ability to send mail via outlook.
Huh?

Google Apps is FREE for 50 users or less. Including the Webmail interface, spam filtering, and POP3/IMAP (including the secure modes).

@mikeage:

I use one; that way when I register at foo.com with foo@mydomain, I don't have to remember to add an alias for each and every site. If one starts receiving spam, I can always just route it to /dev/null.

http://www.postfix.org/postconf.5.html# … _delimiter">http://www.postfix.org/postconf.5.html#recipient_delimiter