I have no idea where the documentation is, but you can also add a string to your gmail email address using a plus symbol and the string.

ie. jon.doe@gmail.com could be jon.doe+home@gmail.com.

The problem is that outside of gmail and dotmac many systems will not accept the plus sign in the email.

[ Reply to This | # ]

The following instructions have been copied from a Google newsletter I received.


Flexible Usernames

You can add '+anything' to your email address, and it'll still arrive
in your account. These additional aliases are great for filling out online
forms, communicating with clients outside your organization, or signing up
for newsletters. Instead of questioning whether you want to provide your
primary email address, you can create a 'plus' alias, and then create a
filter to organize incoming mail.

Here are some examples:

- I just purchased an online tutorial, and and they want to send me an
email confirmation. I can input my email address as
username+tutorials@example.com. Then, I can create a filter to label messages
sent to my '+tutorials' alias.

- I'd like to sign up for an industry newsletter - but I don't want
a ton of mail, and I don't want to see it in my inbox every day. I can
sign up with username+newsletter@example.com, and create a filter that
labels those messages 'Newsletter' and skips my inbox. Now I can read
the newsletters at my leisure, and I know where to find them.

[ Reply to This | # ]