KISS solution for email forwarding

I would like to elicit a simple solution for webmasters who needs to create simple forwarding email addresses for their websites.

I host a few dozen domains on my linode and I require an email to be forwarded from admin@domain (and a few other alias's) to my personal fastmail.fm email account. When I setup a new website on a new domain and I want to create a few alias's, here are the solutions that I know of;

1. Create DNS zone on linode. Setup a mailserver - Postfix seems the easiest and most secure. Configuration of virtual alias table is simple. Downside = maintenance is cumbersome (without writing shell scripts) and all the inherent risks associated with running a mail server.

2. Leave DNS with domain registrar and use their email forwarding service combined with URL forwarding to the website hosted on your linode. This appears to be the most simple solution, however I've never done this and dont know if this has any effect on SEO.

3. Create DNS zone on linode and point MX records to 3rd party mail service such as google apps or fastmail.fm. This solution seems about as simple and secure as option 2 however AFAIK, there is no free service which provides this.

Any advice would be greatly appreciated. Please vote in the poll. :D