Email forwarding

To set up a rule to forward your mail from Fastmail to another email inbox, do the following:

  1. Open the Settings → Rules screen and click New Rule in the toolbar at the top.
  2. In the Conditions section, click The sender's email and change this to All messages.
  3. In the Action section, select Send a copy and enter the email address you want to forward to. To send to multiple addresses, separate the addresses with a comma.
  4. Click Save in the toolbar at the top.

You can also use rules, so messages will only be forwarded if they follow certain patterns. Note that a forwarding rule will not apply to any message caught by discard rules, or any message filtered as spam.

Alias forwarding

If you just want to forward all mail sent to one of your aliases, you can do this by directly setting the target of the alias to the address you wish to forward to.

The main differences between this approach and using a rule are:

If these limitations on virus, backscatter, and spam filtering are OK, then you can use the Settings → Users & Aliases screen to target aliases at the external address(es).