[bitfolk] migrating mail to gmail

Hi there, I'm considering migrating my email handling to gmail for business. I've used gmail as a web interface to my email for several years. It works, and the spam filtering seems to be correct in almost every case. My current mail handling works as follows... I use exim4 to handle the email for 6 domains. Only 2 of the domains are used regularly, with about 10 accounts for each. It's not a big set-up. I have a droplist containing 718 'To:' addresses which definitely do not exist - I was the target of a spam attack a few years ago. The spammer created thousands of fake addresses using my domain. I get a lot of attempts to these addresses, but the blocklist has been very effective in taking the load of my server. :) I make use of some wildcard addresses. john(a)example.org, john-foo(a)example.org and john-bar(a)example.org and john-amazon.com(a)example.org are all accepted as valid addresses for user 'John'. I used to use qmail and really liked the dot qmail idea. Of the mail which gets through, I check the senders against a couple of SBL lists (zen.spamhaus.org and list.dsbl.org). I perform a few more checks before I pass it on to procmail. I use procmail to filter through a whitelist and blacklist, then through ClamAssassin and Bitfolk's SpamAssassin daemon. If it hasn't been dumped by this stage, it is forwarded to a gmail account for ease of reading. Does this sound like something which could be migrated to gmail? The SBL and (clam|spam)assassin isn't a problem - gmail does this itself. My concern is with the wildcard addresses. I know gmail supports the '+ syntax' e.g. john+amazon.com(a)example.org, but manually converting all of the addresses which use a hyphen, to use a plus sign would be an impossible task. Unless you know of a viable solution? I think that I make my email handling more difficult than necessary - mostly borne out of that spam attack I went through (http://en.wikipedia.org/wiki/Peter_Francis-Macrae) - but also because of my frequent use of wildcard addresses. Suggestions welcome. Thanks, Duggie